_:vb50939494 "url:https://www.ncbi.nlm.nih.gov/pubmed/19752159"^^ . _:vb50939494 . _:vb50939494 "url:https://www.ncbi.nlm.nih.gov/pubmed/18469813"^^ . _:vb50939494 . _:vb50939494 . _:vb50939494 "A developmental and epileptic encephalopathy characterized by seizure onset in infancy and mild to severe intellectual impairment in females that has_material_basis_in heterozygous mutation in the gene encoding protocadherin-19 (PCDH19) on chromosome Xq22."^^ . _:vb50939494 "url:https://pubmed.ncbi.nlm.nih.gov/20830798/"^^ . _:vb50939494 . _:vb50939494 .