_:vb50946190 . _:vb50946190 "A syndrome characterized by agenesis of the corpus callosum, severe intellectual disability, seizures, and spasticity with males showing a severe phenotype and females showing a mild or non-affected phenotype that has_material_basis_in mutation in ARX on chromosome Xp21.3."^^ . _:vb50946190 . _:vb50946190 . _:vb50946190 . _:vb50946190 . _:vb50946190 "url:https://pubmed.ncbi.nlm.nih.gov/1605226/"^^ . _:vb50946190 "url:https://pubmed.ncbi.nlm.nih.gov/14722918/"^^ .