_:vb50945971 . "OMIM:300577"^^ . "disease_ontology"^^ . "non-syndromic X-linked intellectual disability 91"^^ . "DOID:0112043"^^ . "X-linked mental retardation 91"^^ . . . _:vb50945971 . _:vb50945971 . "MRX91"^^ . "A non-syndromic X-linked intellectual disability characterized by severe intellectual disability that has_material_basis_in heterozygous mutation in a region on chromosome Xq13.3."^^ . . . _:vb50945971 . _:vb50945971 .