_:vb50940889 . _:vb50940889 . _:vb50940889 . _:vb50940889 . _:vb50940889 "url:https://www.ncbi.nlm.nih.gov/pubmed/25954033"^^ . _:vb50940889 "An orofacial cleft that has_material_basis_in mutation in the DLX4 gene on chromosome 17q21."^^ . _:vb50940889 .