_:vb50942431 . _:vb50942431 "An amelogenesis imperfecta associated with mutation in a gene in the Xq22-q28 region."^^ . _:vb50942431 . _:vb50942431 "url:https://www.ncbi.nlm.nih.gov/pubmed/1358807"^^ . _:vb50942431 . _:vb50942431 . _:vb50942431 .