_:vb50940622 . _:vb50940622 "An amelogenesis imperfecta type 3 that is characterized by enamel that is reduced in mineral density and is thin, chipped, and absent in places and that has_material_basis_in heterozygous mutation in the amelotin gene."^^ . _:vb50940622 . _:vb50940622 . _:vb50940622 . _:vb50940622 "url:https://pubmed.ncbi.nlm.nih.gov/27412008/"^^ .