| Inbound Relationships |
Type |
Active |
Source |
Characteristic |
Refinability |
Group |
| A rare genetic disease characterized by global developmental delay with language and cognition deficiencies, behavioral problems, osteopenia, joint laxity, skin defects consisting of hyperkeratosis and sweat gland and melanocyte abnormalities with hypopigmented areas, and abnormal hair structure. Mild facial dysmorphism (prominent forehead, thick eyebrows, epicanthal folds, broad nasal bridge, long philtrum, and micrognathia), abnormalities of the teeth, and skeletal and cardiac anomalies have also been described. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| Short stature-delayed bone age due to thyroid hormone metabolism deficiency is a rare, genetic congenital hypothyroidism disorder characterized by mild global developmental delay in childhood, short stature, delayed bone age, and abnormal thyroid and selenium levels in serum (high total and free T4 concentrations, low T3, high reverse T3, normal to high TSH, decreased selenium). Intellectual disability, primary infertility, hypotonia, muscle weakness, and impaired hearing have also been reported. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| Developmental delay with autism spectrum disorder and gait instability is a rare, genetic, neurological disorder characterized by infant hypotonia and feeding difficulties, global development delay, mild to moderated intellectual disability, delayed independent ambulation, broad-based gait with arms upheld and flexed at the elbow with brisk walking or running, and limited language skills. Behavior patterns are highly variable and range from sociable and affectionate to autistic behavior. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| Developmental and speech delay due to SOX5 deficiency is a rare genetic syndromic intellectual disability characterized by mild to severe global developmental delay, intellectual disability and behavioral abnormalities, hypotonia, strabismus, optic nerve hypoplasia and mild facial dysmorphic features (down slanting palpebral fissures, frontal bossing, crowded teeth, auricular abnormalities and prominent philtral ridges). Other associated clinical features may include seizures and skeletal anomalies (kyphosis/scoliosis, pectus deformities). |
Is a |
False |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare neurologic disease characterized by global developmental delay, intellectual disability, multiple ischemic lesions in brain MRI, behavioral abnormalities, dystonia, choreic movements and pyramidal syndrome, facial dysmorphism (hypertelorism, arched palate, macroglossia), retinitis pigmentosa, scoliosis, seizures. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare genetic syndromic intellectual disability characterized by global developmental delay and borderline to severe intellectual disability, autism spectrum disorder with obsessive behavior, stereotypies, hyperactivity but frequently friendly and affable personality, feeding difficulties, short stature, muscular hypotonia, microcephaly, characteristic dysmorphic features (hypertelorism, high arched eyebrows, ptosis, deep and/or broad nasal bridge, broad/prominent nasal tip, short and/or upturned philtrum, narrow mouth, and micrognathia), and skeletal anomalies (kyphosis and/or scoliosis, arthrogryposis, slender habitus and extremities). Other clinical features may include hernias, congenital heart defects, cryptorchidism and seizures. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| Short ulna-dysmorphism-hypotonia-intellectual disability syndrome is a rare, genetic, multiple congenital anomalies/dysmorphic syndrome characterized by mild to severe global development delay, severe intellectual disability, mild hypotonia, a short ulna, hirsutism of the face and extremities, minimal scoliosis, and facial dysmorphism, notably a tall broad forehead, synophrys, hypertelorism, malar hypoplasia, broad nose with thick alae nasi, low-set, small ears, long philtrum, thin upper lip and everted lower lip vermilion. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare, autosomal recessive, syndromic intellectual disability disorder characterized by global development delay, mild microcephaly, mild to severe intellectual disability and non-specific facial dysmorphism in association with variable multiple congenital anomalies including congenital heart defects, dental anomalies, cryptorchidism, renal and cerebral malformations. Short stature is frequent. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare, genetic, neurodevelopmental disorder characterized by global developmental delay, borderline to severe intellectual disability, feeding difficulties, behavioral anomalies, vision anomalies and mild facial dysmorphism. Other associated features may include microcephaly, short stature, urogenital or palatal anomalies (e.g. cleft palate), minor cardiac defects, recurrent infections or hearing loss. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare, genetic, syndromic intellectual disability disorder, with highly variable phenotype, typically characterized by mild to severe global development delay, severe speech and language impairment, mild to severe intellectual disability, dysphagia, hypotonia, relative to true macrocephaly, and behavioral problems that may include autistic features, hyperactivity, and mood lability. Facial gestalt typically features a broad, prominent forehead, hypertelorism, downslanting palpebral fissures, ptosis, a short bulbous nose with broad tip, thick vermilion border, wide, and open mouth with downturned corners. Brain, cardiac, urogenital and ocular malformations may be associated. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| Growth retardation-mild developmental delay-chronic hepatitis syndrome is a rare, genetic, parenchymatous liver disease characterized by pre- and postnatal growth retardation, mild global developmental delay, chronic hepatitis with hepatosplenomegaly, Hashimoto thyroiditis, thrombocytopenia, anemia, and B-precursor acute lymphoblastic leukemia. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare, genetic, systemic autoimmune disease characterized by failure to thrive, global developmental delay, distinctive craniofacial dysmorphism (relative macrocephaly, dolichocephaly, frontal bossing, orbital proptosis, flattened midface with a prominent occiput, low, posteriorly rotated ears, micrognathia), hepato- and/or splenomegaly, and multisystemic autoimmune disease involving the lungs, liver, gut and/or thyroid gland. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare, genetic, inborn error of branched-chain amino acid metabolism disorder, with a highly variable clinical and biochemical phenotype, typically characterized by mild to severe global developmental delay, elevated methylmalonic acid and, occasionally, lactic acid plasma levels, and chronic methylmalonic aciduria, which may be accompanied by elevation of additional organic or amino acids in urine (e.g. beta-alanine, methionine, 3-hydroxypropionic, 3-aminoisobutyric and/or 3-hydroxyisobutyric acid). Microcephaly, mild craniofacial dysmorphism, axial hypotonia, liver failure, and central nervous system abnormalities on MRI have also been reported. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| Global developmental delay-lung cysts-overgrowth-Wilms tumor syndrome is a rare, genetic, overgrowth syndrome characterized by global developmental delay, macrosomia with subsequent somatic overgrowth, bilateral cystic lung lesions, congenital nephromegaly and bilateral Wilms tumor. Craniofacial dysmorphism includes macrocephaly, frontal bossing, large anterior fontanelle, mild hypertelorism, ear pit, flat nasal bridge, anteverted nares and mild micrognathia. Additional features may include brain and skeletal anomalies, enlarged protuberant abdomen, fat pads on dorsum of feet and toes, and rugated soles with skin folds, as well as umbilical/inguinal hernia and autistic behavior. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| Primary microcephaly-epilepsy-permanent neonatal diabetes syndrome is a rare, genetic, neurologic disease characterized by congenital microcephaly, severe, early-onset epileptic encephalopathy (manifesting as intractable, myoclonic and/or tonic-clonic seizures), permanent, neonatal, insulin-dependent diabetes mellitus, and severe global developmental delay. Muscular hypotonia, skeletal abnormalities, feeding difficulties, and dysmorphic facial features (including narrow forehead, anteverted nares, small mouth with deep philtrum, tented upper lip vermilion) are frequently associated. Brain MRI reveals cerebral atrophy with cortical gyral simplification and aplasia/hypoplasia of the corpus callosum. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare, genetic, neurometabolic disorder characterised by severe, progressive microcephaly, severe to profound global development delay, intellectual disability, seizures (typically tonic and/or myoclonic and frequently intractable), hyperekplexia, and axial hypotonia with appendicular spasticity, as well as hyperreflexia, dyskinetic quadriplegia, and abnormal brain morphology (cerebral atrophy with variable additional features including ventriculomegaly, pons and/or cerebellar hypoplasia, simplified gyral pattern and delayed myelination). Cortical blindness, feeding difficulties and respiratory insufficiency may also be associated. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare, genetic, central nervous system malformation syndrome characterized by early-onset, progressive, severe cerebellar ataxia associated with progressive, moderate to severe intellectual disability, global developmental delay, progressively coarsening facial features, relative macrocephaly and absence of seizures. Sensorineural hearing loss may be associated. Neuroimaging reveals cerebellar atrophy/hypoplasia. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare, genetic syndromic intellectual disability characterized by developmental delay, mild to severe intellectual disability, facial features (bulbous nasal tip, and macroglossia, macrostomia, or open mouth appearance) and a wide spectrum of other nonspecific variable clinical features. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare, genetic, syndromic intellectual disability disease characterized by global developmental delay, microcephaly, mild to moderate intellectual disability, truncal ataxia, trunk and limb, or generalized, choreiform movements, and elevated serum creatine kinase levels. Variably associated features include mild cerebral atrophy, muscular weakness or hypotonia in early childhood, and/or seizures. Ocular abnormalities (e.g. exophoria, anisometropia, amblyopia) have been reported. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| Microcephaly-capillary malformation syndrome |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare, genetic neurological disorder characterized by early-onset severe global developmental delay with regression, congenital or acquired microcephaly, hearing loss, truncal hypotonia, appendicular spasticity, and dystonia and/or myoclonus. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare mitochondrial disease characterized by signs and symptoms within a phenotypic and metabolic spectrum that includes global developmental delay, hypotonia, intellectual disability, optic atrophy, axonal neuropathy, hypertrophic cardiomyopathy, lactic acidosis, and increased excretion of Krebs cycle intermediates. Other variable features are spasticity, seizures, ataxia, congenital cataract, and dysmorphic facial features. Age of onset is in the neonatal period or infancy. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare genetic multiple congenital anomalies/dysmorphic syndrome characterized by global developmental delay, intellectual disability, absent scrotum or labia majora, absent or underdeveloped nipples and a tuft of hair extruding from the lactiferous ducts, bilateral corneal opacities, and dysmorphic craniofacial features (microcephaly, short forehead, and ear abnormalities, among others). Patients also show horizontal nystagmus and ataxic gait. Brain MRI reveals small cerebellar hemispheres and vermis and a small pons. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare genetic multiple congenital anomalies/dysmorphic syndrome characterized by global developmental delay, intellectual disability, hypotonia, seizures, and autism spectrum disorder. Variable associated features include ophthalmologic anomalies, congenital heart defects, genitourinary defects, and craniofacial dysmorphism (including frontal bossing, epicanthal folds, low-set, posteriorly rotated ears, anteverted nares, and micrognathia). Brain imaging may show thinning of the corpus callosum, white matter abnormalities, ventriculomegaly, and a small cerebellar vermis. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare genetic multiple congenital anomalies/dysmorphic syndrome characterized by global developmental delay and intellectual disability, infantile hypotonia, microcephaly, movement disorder, and impaired balance. More variable manifestations are hearing loss, cortical visual impairment, abnormalities of fingers and/or toes, congenital cardiac anomalies, kyphoscoliosis, dysmorphic facial features, abnormal sleep pattern, and seizures, among others. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare congenital disorder of glycosylation characterized by early onset of hypotonia, severe global developmental delay, intellectual disability, and seizures. Ataxia, mild facial dysmorphism, and autistic behavior have also been reported. Brain MRI findings are variable and include cerebral atrophy, cerebellar hypoplasia/atrophy, and thin corpus callosum. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare multiple congenital anomalies/dysmorphic syndrome with intellectual disability characterized by infantile onset of global developmental delay, severe intellectual disability, growth deficiency, microcephaly, strabismus, blue-gray sclerae, and extensive Mongolian spots. Some patients also present with epilepsy. Brain imaging may demonstrate variable abnormalities including cerebral atrophy, thin corpus callosum, ventriculomegaly, or arachnoid cysts. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare genetic neurological disorder characterized by infantile to childhood onset of global developmental delay, hypotonia, seizures, growth delay, and intellectual disability. Additional variable features include strabismus, cortical visual impairment, nystagmus, movement disorder (such as dystonia, ataxia, or chorea), or mild dysmorphic features, among others. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare multiple congenital anomalies/dysmorphic syndrome with intellectual disability characterized by global developmental delay, intellectual disability, macrothrombocytopenia, lymphedema, and dysmorphic facial features (like synophrys, ptosis, eversion of the lateral portion of the lower eyelid, and thin upper lip, among others). Additional reported manifestations include cardiac and genitourinary anomalies, sensorineural hearing loss, ophthalmologic abnormalities, skeletal anomalies, and immunodeficiency. Brain imaging may show enlarged ventricles, cerebellar atrophy, or white matter changes. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| Global developmental delay-visual anomalies-progressive cerebellar atrophy-truncal hypotonia syndrome is a rare, genetic, neurological disorder characterized by mild to severe developmental delay and speech impairment, truncal hypotonia, abnormalities of vision (including cortical visual impairment and abnormal visual-evoked potentials), progressive brain atrophy mainly affecting the cerebellum, and shortened or atrophic corpus callosum. Other clinical findings may include increased muscle tone in the extremities, dystonic posturing, hyporeflexia, scoliosis, postnatal microcephaly and variable facial dysmorphism (e.g. deep-set eyes, gingival hyperplasia, short philtrum and retrognathia). |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare genetic multiple congenital anomalies/dysmorphic syndrome characterized by global developmental delay, intellectual disability, and dysmorphic facial features (such as facial asymmetry, prominent forehead, short palpebral fissures, low nasal bridge, smooth and long philtrum, thin upper lip, and low-set, posteriorly rotated, dysplastic ears), exclusively affecting females. Additional reported manifestations include short stature, choanal atresia, scoliosis, congenital ocular, dental, cardiac, and urogenital anomalies, as well as hypotonia, seizures, and structural brain abnormalities, among others. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| Palatal anomalies-widely spaced teeth-facial dysmorphism-developmental delay syndrome is a rare, genetic multiple congenital anomalies/dysmorphic syndrome characterized by global developmental delay, axial hypotonia, palate abnormalities (including cleft palate and/or high and narrow palate), dysmorphic facial features (including prominent forehead, hypertelorism, downslanting palpebral fissures, wide nasal bridge, thin lips and widely spaced teeth), and short stature. Additional manifestations may include digital anomalies (such as brachydactyly, clinodactyly, and hypoplastic toenails), a single palmar crease, lower limb hypertonia, joint hypermobility, as well as ocular and urogenital anomalies. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare partial duplication of the long arm of chromosome 17 characterized by a combination of features of 17p11.2 microduplication syndrome and Charcot-Marie-Tooth disease type 1A. Patients present with infantile onset of global developmental delay, hypotonia, feeding difficulties, and failure to thrive, as well as childhood onset of peripheral neuropathy with distal extremity weakness or atrophy, gait impairment, sensory loss, reduced or absent deep tendon reflexes of the ankles, and foot deformities. Facial dysmorphism, cardiac and renal anomalies, and syringomyelia may also be observed. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare genetic multiple congenital anomalies/dysmorphic syndrome characterized by global developmental delay, intellectual disability, seizures, abnormal gait, and craniofacial dysmorphism (including coarse features, depressed nasal bridge, anteverted nares, broad nasal tip, prominent maxilla and upper lip, wide mouth, abnormal gingiva, and widely spaced teeth). Additional reported manifestations are ocular anomalies, cardiac defects, gastrointestinal problems, and autistic features. Brain imaging may show thin corpus callosum, white matter abnormalities, or dilated ventricles. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare genetic multiple congenital anomalies/dysmorphic syndrome characterized by intrauterine and postnatal growth restriction, global developmental delay, intellectual disability, and dysmorphic facial features (such as broad nasal root, anteverted nares, long philtrum, low-set and posteriorly rotated ears, and short neck). Additional reported manifestations are microcephaly, short stature, vertebral abnormalities, joint laxity, ocular, cardiac, and renal defects, and minor limb anomalies. Brain imaging may show hypoplastic corpus callosum, delayed myelination, and cerebral atrophy. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare genetic multiple congenital anomalies/dysmorphic syndrome characterized by global developmental delay, variable degrees of intellectual disability, and facial dysmorphism (including high nasal bridge, deep-set eyes, and wide mouth), often associated with feeding difficulties and/or gastroesophageal reflux. Additional reported manifestations are seizures, hypotonia, autistic features, and joint laxity. Brain imaging may show non-specific features (such as cerebral atrophy). |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare genetic multiple congenital anomalies/dysmorphic syndrome characterized by variable developmental delay, intellectual disability, early-onset seizures, and facial dysmorphism (including arched eyebrows, long palpebral fissures, prominent nasal bridge, large ears, thin upper lip, and high arched palate). Other reported features are microcephaly, hypotonia, growth retardation, congenital heart defects, and malformations of the fingers and toes, as well as additional neurologic manifestations (such as ataxia or spastic quadriplegia). Brain imaging may show hypoplastic corpus callosum, white matter abnormalities, or cortical atrophy. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare genetic disease characterized by early-onset respiratory difficulties and frequent respiratory infections, congenital heart defects, dysostosis multiplex, hepatosplenomegaly, renal involvement, hematopoietic abnormalities, facial dysmorphism (coarse facial features, large forehead, synophrys, long eyelashes, broad nasal bridge, macroglossia, short neck, and low hairline), and global developmental delay. Laboratory examination shows increased urinary excretion of glycosaminoglycans and increased plasma heparan sulfate, but no lysosomal enzyme deficiency. The disease is usually fatal in the first years of life. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare, genetic, neurodevelopmental disorder with primordial microcephaly characterized by primary microcephaly, moderate to severe intellectual disability, and global developmental delay. Variable brain malformations are common ranging from simplified gyration, to cortical malformations such as pachygyria, polymicrogyria, reduced sulcation and midline defects. Craniofacial dysmorphism (e.g. sloping forehead, high and broad nasal bridge) are related to the primary microcephaly. Short stature is frequently observed and may be severe. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare genetic leukodystrophy identified in families of Ashkenazi Jewish descent, characterized by infancy onset of severe global developmental delay with very limited or absent speech and sometimes complete absence of motor development, hypotonia, spasticity, and acquired microcephaly. Seizures, hearing loss, visual impairment, and autonomic dysfunction have also been described. Brain imaging shows delayed myelination and other white matter abnormalities. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare genetic, multiple congenital anomalies syndrome characterized by short stature, hand brachydactyly with hypoplastic distal phalanges, global development delay, intellectual disability, and more variably seizures, obesity, and craniofacial dysmorphism that includes microcephaly, high forehead, flat face, hypertelorism, deep set eyes, flat nasal bridge, averted nostrils, long philtrum, thin lip vermilion, and short neck. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare genetic multiple congenital anomalies/dysmorphic syndrome characterized by global developmental delay and intellectual disability, progressive spondyloepimetaphyseal dysplasia, short stature, short fourth metatarsals, and dysmorphic craniofacial features (including microcephaly, hypertelorism, epicanthal folds, mild ptosis, strabismus, malar hypoplasia, short nose, depressed nasal bridge, full lips, small, low-set ears, and short neck). Craniosynostosis, generalized hypotonia, as well as asymmetry of the cerebral hemispheres and mild thinning of the corpus callosum on brain imaging have also been described. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare, genetic intellectual disability syndrome characterized by severe global developmental delay with intellectual disability, microcephaly, growth retardation, ocular defects such as congenital cataract, and nevus flammeus simplex on the forehead. Cardiac, urogenital, and skeletal abnormalities, as well as seizures are present in most patients. Dysmorphic craniofacial features include sparse hair, downslanting palpebral fissures, hypertelorism, broad and overhanging nasal tip and short philtrum, among others. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare genetic neurological disorder characterized by postnatal onset of severe global developmental delay, profound mental retardation, progressive microcephaly, progressive spasticity evolving into spastic quadriplegia with joint contractures, generalized seizures, and irritability. Severe choreoathetosis and dysmorphic features are absent. Brain imaging shows progressive cerebellar atrophy followed by cerebral atrophy affecting both white and gray matter, but no pontine involvement. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare, genetic, neurometabolic disease characterized by early onset encephalopathy with progressive microcephaly, severe global development delay, seizures, hypotonia, feeding difficulties, variable cardiac abnormalities, and cataracts. Brain MRI shows distinct pattern with high T2 signal and restricted diffusion in the posterior limb of the internal capsule in combination with delayed myelination and progressive cerebral atrophy. The disease is typically fatal. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare autosomal ichthyosis syndrome with prominent neurologic signs characterized by the association of congenital ichthyosis with global developmental delay, intellectual disability, infantile-onset seizures, and spastic tetraplegia. Brain imaging may show delayed myelination and cerebral atrophy. Marked intrafamilial variability has been reported. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare genetic multiple congenital anomalies/dysmorphic syndrome characterized by global developmental delay, intellectual disability, growth retardation, hypotonia, cerebellar symptoms such as ataxia, spondyloepiphyseal dysplasia, and dysmorphic craniofacial features (including microcephaly, dolichocephaly, prominent ears, epicanthus, broad nasal bridge, long and flat philtrum, or small mouth). Additional reported manifestations are epilepsy, retinitis pigmentosa, and urogenital abnormalities, among others. Brain imaging may show cerebellar hypoplasia. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare genetic neurological disorder characterized by infantile onset of progressive leukoencephalopathy, microcephaly, severe global developmental delay, and spasticity resulting in quadriparesis and posture deformation. Additional features include an abnormally exaggerated startle reflex, seizures, dystonia, and hypomimia or amimia, as well as progressive chest deformities and contractures of large and hyperextensibility of small joints, among others. Thin corpus callosum is a prominent feature in brain imaging, in addition to white matter abnormalities consistent with leukoencephalopathy. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare genetic neurological disorder characterized by infantile hypotonia, congenital ophthalmic anomalies (including strabismus, esotropia, nystagmus, and central visual impairment), global developmental delay and intellectual disability, behavioral abnormalities, and movement disorder (such as dystonia, chorea, hyperkinesia, stereotypies). Mild facial dysmorphism and skeletal deformities have also been reported. EEG testing shows marked abnormalities in the absence of overt epileptic seizures. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare, genetic, syndromic intellectual disability characterized by global developmental delay, early-onset seizures, cerebellar atrophy, osteopenia, nystagmus and dysmorphic facial features, including bitemporal narrowing, prominent forehead, anteverted nares. Dysarthria, dysmetria, ataxic gait, spasticity and dysmorphic features have also been associated. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare multiple congenital anomalies/dysmorphic syndrome characterized by axial hypotonia after birth, prolonged feeding difficulties, moderate to severe global developmental delay, seizures (in particular absence seizures), fetal digital pads, distinctive plantar fat pads anteromedial to the heels, and deep palmar and plantar grooves. Over time, fat pads may become less prominent and disappear. Distinct craniofacial dysmorphic features include a broad face with high forehead, high anterior hairline, narrow palpebral fissures that take on a crescent moon shape when smiling, broad nasal bridge and tip with anteverted nostrils, mild midfacial hypoplasia, long, smooth philtrum, thin upper lip vermillion, small, widely spaced teeth, and flat occiput/microcephaly/brachycephaly. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare genetic syndromic intellectual disability characterized by infantile onset of global developmental delay and profound intellectual disability in association with a heterogeneous spectrum of manifestations, such as features of lower motor neuron disease, hypotonia, spasticity, contractures, seizures, respiratory insufficiency, and optic atrophy, among others. Dysmorphic craniofacial features include microcephaly, tall forehead, bitemporal narrowing, flat nasal bridge, low-set ears, and high-arched palate. Brain imaging may show cerebral and cerebellar atrophy, delayed myelination, and thin corpus callosum. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare disorder of ornithine metabolism characterized by global developmental delay, alopecia, macrocephaly, and dysmorphic facial features (including high and broad forehead, hypertelorism, ptosis, blepharophimosis, downslanting palpebral fissures, deep-set eyes, large ears, and retrognathia or high arched palate). Additional reported manifestations are sensorineural hearing loss, spasticity, hypotonia, hypoplastic nails, cryptorchidism, and clinodactyly, among others. Brain imaging may show white matter abnormalities, periventricular cysts, enlarged lateral ventricles, or prominent perivascular spaces. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare organic aciduria characterized by early onset of global developmental delay with severe intellectual disability, seizures, and 3-methylglutaconic aciduria. Additional features are hypotonia, hyperactivity and aggressive behavior, optic atrophy, or spasticity. Brain imaging may show generalized cerebral atrophy and white matter abnormalities. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare, genetic, neurodevelopmental disorder characterized by global developmental delay, congenital heart defects, generalized hypertrichosis and dysmorphic facial features, most commonly triangular face, thick arched eyebrows, widely spaced eyes, posteriorly rotated low set ears, depressed nasal bridge, broad nasal root and tip, and pointed chin. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare genetic multiple congenital anomalies/dysmorphic syndrome characterized by global developmental delay, intellectual disability, hypotonia, craniofacial dysmorphism (such as ridged metopic sutures, long palpebral fissures, broad nasal bridge, hypoplastic alae nasi, low-set, prominent ears, prominent midline tongue groove, and downturned mouth), congenital heart defects, and variable skeletal abnormalities including hip dysplasia, vertebral anomalies, and scoliosis. Additional reported manifestations include high pain tolerance and genitourinary anomalies. Brain imaging may show a thin corpus callosum or white matter abnormalities. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare, genetic, intellectual disability malformation syndrome characterized by global developmental delay, intellectual disability, delayed speech and language development, epilepsy, autistic behavior, and moderate facial dysmorphism (including elongated face, narrow forehead, arched eyebrows, horizontal palpebral fissures, hypertelorism, epicanthus, midface flattening, short nose, long and featureless philtrum, thin upper lip, macrostomia, and prominent chin). Additional variable manifestations include microcephaly, hypotonia, hypertrichosis, and strabismus. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare genetic, skeletal muscle disease with characteristics of early-onset hypotonia, muscle weakness, global developmental delay with intellectual disability and cardiomyopathy. Congenital structural heart defects and ichthyosiform cutaneous lesions have also been associated. Muscle biopsy shows characteristic enlarged mitochondria located at the periphery of muscle fibres. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare congenital disorder of glycosylation caused by mutations in the CAD gene and characterized by epileptic encephalopathy, global developmental delay, normocytic anemia and anisopoikilocytosis. Loss of acquired skills in early childhood is present and natural disease course can be lethal in early childhood. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare neurometabolic disorder due to serine deficiency characterized by neonatal to infantile onset of global developmental delay, postnatal microcephaly and intellectual disability, which may be associated with slowly progressive spastic tetraplegia mainly affecting the lower extremities, seizures, and brain MRI findings including thin corpus callosum, delayed myelination and cerebral atrophy. Additional symptoms include brisk deep tendon reflexes, extensor plantar responses, behavioral abnormalities (such as irritability, hyperactivity, sleep disorder), abnormal hand movements and stereotypy. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare multiple congenital anomalies/dysmorphic syndrome characterized by global developmental delay, intellectual disability, growth retardation, hearing impairment, characteristic facial dysmorphology (including prominent supraorbital ridges, downslanting palpebral fissures, deep-set eyes, long face, sagging cheeks, anteverted nares, and pointed chin), generalized hypotonia, joint hypermobility, gluteal crease with sacral caudal remnant and sacral dimple, and variable neurological features. Various ophthalmic, cutaneous, musculoskeletal, gastrointestinal, and cardiovascular anomalies have also been described. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare X-linked syndromic intellectual disability characterized by global development delay, postnatal growth retardation leading to short stature, facial dysmorphism, short hands with tapering fingers and progressive skeletal abnormalities including kyphoscoliosis and pectus carinatum/excavatum. Intellectual disability ranges from mild to severe. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare disorder of plasmalogen biosynthesis characterized by syndromic severe intellectual disability with congenital cataracts, early-onset epilepsy, microcephaly, global developmental delay, growth retardation and short stature, and spastic quadriparesis. Dysmorphic facial features may be present, including high-arched eyebrows, flattened nasal root, hypertelorism, and long and smooth philtrum. Rhizomelia is not part of the syndrome. Cerebellar atrophy, white matter abnormalities, and Dandy-Walker malformation have been described on brain imaging. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare autosomal recessive cerebellar ataxia characterized by early onset of slowly progressive cerebellar atrophy, clinically manifesting with extremity and truncal ataxia, global developmental delay, intellectual impairment, nystagmus, dysarthria, intention tremor, and pyramidal signs, among others. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| 16p12.1p12.3 triplication syndrome is a rare chromosomal anomaly syndrome resulting from the partial triplication of the short arm of chromosome 16 characterized by global developmental delay, pre- or post-natal growth delay and distinctive craniofacial features, including short palpebral fissures, epicanthal folds, bulbous nose, thin upper vermillion border, apparently low-set ears and large ear lobes. Variable clinical features that have been reported include congenital heart disease, genitourinary abnormalities, visual anomalies or, less commonly, infantile hepatic disease. Patients are also reported to have tapered fingers. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare genetic syndromic intellectual disability characterized by global developmental delay and speech delay, variable degrees of intellectual disability, and dysmorphic facial features (such as frontal bossing, epicanthal folds, strabismus, depressed nasal bridge, short philtrum, auricular abnormalities, micrognathia, or crowded teeth, among others). Additional reported manifestations are behavioral problems (stereotypies, aggression, anxiety, autism spectrum disorder), skeletal anomalies (scoliosis, pectus carinatum, clinodactyly of fingers and toes, among others), and seizures. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare genetic disease characterized by microcephaly, global developmental delay, intellectual disability, abnormal muscle tone, and sensorineural hearing impairment. Additional variable manifestations include epilepsy, cortical visual impairment, gastrointestinal disturbances, growth restriction, scoliosis, as well as immunodeficiency and thrombocytopenia. Brain imaging may show cerebral atrophy, thin corpus callosum, and hypomyelination. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare, syndromic intellectual disability characterized by hypotonia, global developmental delay, limited or absent speech, intellectual disability, macrocephaly, mild dysmorphic features, seizures and autism spectrum disorder. Associated ophthalmologic, heart, skeletal and central nervous system anomalies have been reported. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare genetic neurodevelopmental disorder characterized by global developmental delay (DD) and variable degrees of intellectual disability (ID) with delayed or limited/absent speech development associated with neonatal hypotonia, feeding difficulties, cardiac anomalies and dysmorphic facial features, predominantly broad nasal tip and thin, tented upper lip. Microcephaly, frequent infections, gastrointestinal and/or ocular anomalies have also been described. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare multiple congenital anomalies/dysmorphic syndrome with intellectual disability characterized by severe congenital contractures of the limbs and face, hypotonia, neonatal respiratory distress, and global developmental delay. Dysmorphic facial features include downslanting palpebral fissures, broad nasal bridge, large nares, long philtrum, and deep nasolabial folds, among others. Limb deformities (camptodactyly, clubfoot), short neck, scoliosis, as well as seizures have also been reported. Brain MRI may show cerebral and cerebellar atrophy in some cases. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare genetic neurometabolic disease characterized by childhood onset of global developmental delay, progressive spastic ataxia leading to loss of independent ambulation, and elevated plasma levels of glutamine. Optic atrophy, tremor, and dysarthria have also been reported. Brain imaging may show cerebellar atrophy. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare genetic syndromic intellectual disability characterised by global developmental delay, moderate to severe intellectual disability, motor and language impairment, behavioural abnormalities (with mood instability, aggression, and self-mutilation), and progressive hand tremor. Facial dysmorphism includes narrow palpebral fissures, large ears, long philtrum, and prominent chin. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare genetic neurological disorder characterized by the association of congenital spastic paraplegia with global developmental delay and intellectual disability, ophthalmologic abnormalities (including nystagmus, reduced visual acuity, or hypermetropia), and obesity. Additional manifestations are brachy plagiocephaly and dysmorphic facial features. Brain imaging may show dilated ventricles, abnormal myelination, and mild generalized atrophy. Homozygous loss-of-function variants of KIDINS220 associated with a fetal lethal phenotype with ventriculomegaly and limb contractures have been reported. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare genetic disease characterized by congenital cataract, neonatal hepatic failure and cholestatic jaundice, and global developmental delay. Neonatal death due to progressive liver failure has been reported. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare genetic multiple congenital anomalies/dysmorphic syndrome characterized by overgrowth and macrocephaly with megalencephaly apparent at birth, global developmental delay, intellectual disability, and dysmorphic facial features (including frontal bossing, long face, sparse eyebrows, hypertelorism, downslanting palpebral fissures, and prognathism). Patients may exhibit tall stature with dolichostenomelia, arachnodactyly, kyphoscoliosis, and joint laxity, as well as neurologic manifestations, such as hypotonia, gait ataxia, or seizures. Brain imaging may show increased white matter volume, thick corpus callosum, or small cerebellum. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare multiple congenital anomalies/dysmorphic syndrome with intellectual disability characterized by global developmental delay, postnatal microcephaly, intellectual disability, ataxia, sensorineural hearing loss, and exocrine pancreatic insufficiency. More variable manifestations include hypotonia, growth retardation, peripheral demyelinating neuropathy, dysmorphic facial features, and additional endocrine abnormalities. Brain imaging may show progressive cerebellar atrophy in some patients. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare genetic syndrome with a central nervous system malformation as a major feature, characterized by cortical malformations including posterior predominant lissencephaly and diffuse pachygyria, as well as midline crossing defects, thin corpus callosum, dysplastic hippocampi, narrowing of the brainstem with small pons and midbrain, widening of the medulla, and small cerebellum. Clinically, patients present global developmental delay, severe intellectual disability with poor or absent speech, axial hypotonia, and early-onset seizures, among others. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare genetic disorder of magnesium transport characterized by infantile onset of generalized seizures and severe hypomagnesemia due to massive renal magnesium wasting. Seizures persist despite magnesium supplementation and are associated with significant global developmental delay and intellectual disability. Brain MRI may show reduced cerebral volume. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare genetic multiple congenital anomalies/dysmorphic syndrome with characteristics of microcephaly, severe global developmental delay and intellectual disability, hypotonia, respiratory insufficiency, failure to thrive, and congenital anomalies affecting the skeleton, eyes, and several organ systems. Seizures and hearing loss are sometimes observed. Independent ambulation and meaningful speech are not attained. Common dysmorphic facial features include small forehead, biparietal narrowing, flat face, hypertelorism, arched eyebrows, short, upslanting palpebral fissures, wide nasal bridge, small, upturned nose, forward facing ears, and micrognathia. Brain imaging shows structural abnormalities in all patients. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare genetic neurometabolic disease characterised by microcephaly, short stature, epilepsy, cerebral hypomyelination, severe global developmental delay, and progressive spasticity. Macrocytic anaemia and hyperthermia have also been reported in association. Brain imaging reveals delayed myelination with minimal progression over time, mild cerebellar atrophy and/or thin corpus callosum. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare genetic neurodevelopmental disorder characterised by global developmental delay, severe intellectual disability and absence of expressive language. Muscular hypotonia, seizures, autistic behaviour and stereotypic movements are common. The disorder is caused by homozygous or compound heterozygous intragenic deletions or truncating variants in the NRXN1 gene (2p16.3). NRXN1 belongs to the evolutionarily conserved family of neurexins, presynaptic transmembrane proteins and has an important role in synaptic function. Inheritance is autosomal recessive. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A form of pontocerebellar hypoplasia characterized by microcephaly, severe global developmental delay and intellectual disability, dysmorphic facial features, cerebellar syndrome, and pontocerebellar hypoplasia on brain imaging. Behavioral abnormalities are frequently observed. Other reported manifestations include seizures, ocular anomalies, recurrent respiratory infections, and thin or absent corpus callosum, among others. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A form of pontocerebellar hypoplasia with characteristics of infantile onset of severe global developmental delay with absent speech, hypotonia, feeding problems, dysmorphic craniofacial features, and development of pontocerebellar hypoplasia on brain imaging later in childhood. Other structural abnormalities of the brain, which may already be apparent at an earlier stage, include small hippocampus, thin corpus callosum, periventricular white matter abnormalities, and Dandy-Walker malformation. Seizures, nystagmus, and cortical visual impairment have been reported in some cases. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A form of pontocerebellar hypoplasia characterised by severe, progressive microcephaly and severe global developmental delay apparent from birth, severe intellectual disability with lack of social interactions and absence of speech, and pontocerebellar hypoplasia and complete or partial agenesis of the corpus callosum on brain imaging. In addition, affected individuals often present hypotonia, spastic tetraplegia, and early-onset seizures. Chronic anaemia and thrombocytopenia have also been reported. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare genetic syndromic intellectual disability disorder characterized by global developmental delay, often with severe hypotonia and limited mobility, intellectual disability (mild to severe) with absent or significantly impaired speech and behavioral problems. Craniofacial features include blepharophimosis, epicanthal folds, sparse eyebrows and eyelashes, broad nasal bridge, short nose with downturned tip, open mouth with thin upper vermillion, and abnormal ears. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare syndromic obesity characterized by early-onset severe obesity, hyperphagia and global developmental delay with specific impairment of short term memory and language delay. Patients may represent moderate intellectual disability, stereotyped behaviors, autistic features, impaired nociception, hypotonia and seizures. Facial asymmetry and streak ovaries were also reported in a few cases. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare multiple congenital anomalies/dysmorphic syndrome characterized by developmental delay, severe intellectual disability, severe speech and communication problems and distinctive dysmorphic faces (high hairline, thin eyebrows, hypertelorism, dysmorphic ears, broad nasal bridge and tip, and narrow jaw). Height is not affected. Some patients may also present autistic behaviors. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare genetic neurodegenerative disease with characteristics of childhood-onset severe developmental delay with regression, poor motor development, speech impairment and hypotonia due to CLCN6 mutations. Most of the patients have vision abnormalities, respiratory system abnormalities (including chronic respiratory insufficiency and tracheostomy that may lead to ventilator dependency) and feeding difficulties (percutaneous endoscopic gastronomy). Skin abnormalities including hyperhidrosis can be present. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare multiple congenital anomalies/dysmorphic syndrome characterized by severe intellectual disability, global developmental delay with no speech (some patients may have limited speech), inability or difficulty to walk, microcephaly, and early-onset cataract. Additional clinical features may include hypotonia, spasticity, endocrine/metabolic diseases and immunodeficiency with lymphopenia. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| Progressive microcephaly-seizures-cortical blindness-developmental delay syndrome is a rare, genetic, neuro-ophthalmological syndrome characterized by post-natal, progressive microcephaly and early-onset seizures, associated with delayed global development, bilateral cortical visual impairment and moderate to severe intellectual disability. Additional manifestations include short stature, generalized hypotonia and pulmonary complications, such as recurrent respiratory infections and bronchiectasis. Auditory and metabolic screenings are normal. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare multiple congenital anomalies/dysmorphic syndrome characterised by eye abnormalities (including unilateral/bilateral microphthalmia, coloboma, unilateral ptosis and lens opacity) in addition to failure to thrive, renal anomalies (mainly horseshoe kidney, however ureteral-pelvic junction dysfunction and vesicoureteral reflux were also reported), imperforate anus and global developmental delay. Majority of the patients also present with hearing impairment, cardiac anomalies and dysmorphic features (triangular face, hypoplastic alae nasi, beaked nose, and small pointed chin). |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| 2p21 microdeletion syndrome without cystinuria is a rare partial autosomal monosomy characterized by weak fetal movements, severe infantile hypotonia and feeding difficulties that spontaneously improve with time, urogenital abnormalities (hypospadias or hypoplastic labia majora), global development delay, mild intellectual disability and facial dysmorphism (dolichocephaly, frontal bossing, bilateral ptosis, midface retrusion, open mouth with tented upper lip vermilion). Affected individuals have borderline elevated serum lactate but no cystinuria. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare genetic intellectual disability syndrome characterized by global developmental delay, intellectual disability, severe speech delay, behavioral abnormalities (including impulsivity, compulsivity, stubbornness, manipulative behaviors, temper tantrums, and aggressive behaviors), autism spectrum disorder and mild and variable dysmorphic facies (including deep-set eyes and a prominent nasal septum, extending below the alae nasi) due to point mutation of USP7 gene or 16p13.2 microdeletion where USP7 is completely or partially deleted. Behavioral abnormalities are more pronounced in microdeletion. Patients may also have hypotonia, feeding problems, delayed walking with unsteady gait, hypogonadism in males, seizures and ocular anomalies (such as myopia, esotropia, strabismus, and nystagmus). |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare multiple congenital anomalies/dysmorphic syndrome characterized by global developmental delay, moderate to severe intellectual disability, language delay and asymptomatic persistence of fetal hemoglobin. Joint laxity and microcephaly are commonly observed. Majority of the patients present with variable dysmorphic features (including strabismus, downslanting palpebral fissures, anteverted nose with small nares and full tip, external ear anomalies, thin upper lip and everted lower lip). Behavior problems including anxiety, recurrent hand flapping/biting and attention deficit can also be observed. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare neurologic disease characterized by neonatal hypotonia, global developmental delay, feeding difficulties, and often seizures or seizure-like episodes. Other frequently observed signs and symptoms include variable dysmorphic features, myopathic facies, respiratory problems, and visual abnormalities, such as strabismus or esotropia. Brain imaging may show delayed myelination and other white matter abnormalities. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare partial autosomal monosomy characterised by global developmental delay, intellectual disability, multiple cartilaginous exostoses, and craniofacial anomalies (such as brachycephaly, biparietal foramina, large fontanels, craniosynostosis, ptosis, epicanthic folds, prominent nasal bridge with broad, depressed nasal tip, hypoplastic nares, short philtrum, downturned upper lip, and micrognathia). Additional reported features include behavioural abnormalities, myopia, strabismus, and sensorineural hearing loss, among others. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
| A rare genetic neurodevelopmental disorder characterised by neonatal hypotonia, global developmental delay, normal to accelerated growth, absent to severely delayed speech, and minor dysmorphic features. |
Is a |
True |
Global developmental delay |
Inferred relationship |
Some |
|
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