| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Microcephalus with brachydactyly and kyphoscoliosis syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Microcephalus cardiomyopathy syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Microcephalus and intellectual disability with phalangeal and neurological anomaly syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Uveal coloboma with cleft lip and palate and intellectual disability syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Disorder of sex development with intellectual disability syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Cleft palate with short stature and vertebral anomaly syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| 17q11.2 microduplication syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| 19q13.11 microdeletion syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| 1p21.3 microdeletion syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Chromosome Xp11.3 microdeletion syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| X-linked intellectual disability with precocious puberty and obesity syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| X-linked intellectual disability with seizure and psoriasis syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| X-linked intellectual disability Cabezas type | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| X-linked intellectual disability with plagiocephaly syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| X-linked intellectual disability, macrocephaly, macroorchidism syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| X-linked intellectual disability with acromegaly and hyperactivity syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Wilson Turner syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Congenital hypoplasia of ulna and intellectual disability syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Chromosome Xq28 trisomy | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Craniofacial dysmorphism with coloboma of eye and corpus callosum agenesis syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Aniridia and intellectual disability syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Arachnodactyly with abnormal ossification and intellectual disability syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Arachnodactyly and intellectual disability with facial dysmorphism syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Ataxia with deafness and intellectual disability syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Brachymorphism with onychodysplasia and dysphalangism syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Cerebro-facio-thoracic dysplasia | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Coloboma, congenital heart disease, ichthyosiform dermatosis, intellectual disability ear anomaly syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Cystic fibrosis with gastritis and megaloblastic anemia syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Contracture with ectodermal dysplasia and orofacial cleft syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Aural atresia with multiple congenital anomalies and intellectual disability syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Cystic leukoencephalopathy without megalencephaly | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Cerebrooculonasal syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Filippi syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Deafness with skeletal dysplasia and lip granuloma syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Alopecia, contracture, dwarfism, intellectual disability syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Alopecia and intellectual disability with hypergonadotropic hypogonadism syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Alport syndrome, intellectual disability, midface hypoplasia, elliptocytosis syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Chudley Lowry Hoar syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Fine Lubinsky syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Hair defect with photosensitivity and intellectual disability syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Hall Riggs syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Postaxial polydactyly and intellectual disability syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Short stature with webbed neck and congenital heart disease syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Deafness, genital anomaly, metacarpal and metatarsal synostosis syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Deafness and intellectual disability Martin Probst type syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Dentinogenesis imperfecta, short stature, hearing loss, intellectual disability syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Goldberg Shprintzen megacolon syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Intellectual disability, epilepsy, bulbous nose syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Holmes Gang syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Hypogonadism with mitral valve prolapse and intellectual disability syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Juberg Marsidi syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Radioulnar synostosis with developmental delay and hypotonia syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Biemond syndrome type 2 | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Blepharonasofacial malformation syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Brain anomaly, severe intellectual disability, ectodermal dysplasia, skeletal deformity, ear anomaly, kidney dysplasia syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Lipodystrophy, intellectual disability, deafness syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Lowry MacLean syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Deafness, onychodystrophy, osteodystrophy, intellectual disability syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Intellectual disability, balding, patella luxation, acromicria syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Intellectual disability with cataract and kyphosis syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Kapur Toriello syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Macrocephaly, short stature, paraplegia syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Intellectual disability, enteropathy, deafness, peripheral neuropathy, ichthyosis, keratoderma syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Intellectual disability, epileptic seizures, hypogonadism and hypogenitalism, microcephaly, obesity syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Oculopalatocerebral syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Oculocerebrofacial syndrome Kaufman type | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Okamoto syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Congenital cataract with deafness and hypogonadism syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Congenital cataract with hypertrichosis and intellectual disability syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Congenital cataract with intellectual disability and hypogonadotropic hypogonadism syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Intellectual disability, craniofacial dysmorphism, hypogonadism, diabetes mellitus syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Intellectual disability, hypoplastic corpus callosum, preauricular tag syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Intellectual disability, developmental delay, contracture syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Skeletal dysplasia with intellectual disability syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Seizure, sensorineural deafness, ataxia, intellectual disability, electrolyte imbalance syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Ectodermal dysplasia with blindness syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Growth retardation, alopecia, pseudoanodontia, optic atrophy syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Oro-facial digital syndrome type 10 | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Oro-facial digital syndrome type 5 | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Oro-facial digital syndrome type 8 | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Ossification anomaly with psychomotor developmental delay syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Osteogenesis imperfecta, retinopathy, seizures, intellectual disability syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Osteopenia, myopia, hearing loss, intellectual disability, facial dysmorphism syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Severe X-linked intellectual disability Gustavson type | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Agammaglobulinemia, microcephaly, craniosynostosis, severe dermatitis syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Agenesis of corpus callosum, intellectual disability, coloboma, micrognathia syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Male hypergonadotropic hypogonadism, intellectual disability, skeletal anomaly syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Toriello Carey syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Spastic paraplegia, intellectual disability, palmoplantar hyperkeratosis syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Microcephaly, seizure, intellectual disability, heart disease syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Isodicentric chromosome 15 syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Faciocardiorenal syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Fallot complex with intellectual disability and growth delay syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Microbrachycephaly, ptosis, cleft lip syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Ramos Arroyo syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Hypotrichosis and intellectual disability syndrome Lopes type | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Spastic tetraplegia, retinitis pigmentosa, intellectual disability syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Non-progressive cerebellar ataxia with intellectual disability | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Phosphoribosylpyrophosphate synthetase superactivity | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Renier Gabreels Jasper syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  | 
| Severe intellectual disability, epilepsy, anal anomaly, distal phalangeal hypoplasia syndrome | Is a | False | Mental retardation | Inferred relationship | Existential restriction modifier |  |