_:vb50944622 "url:https://www.ncbi.nlm.nih.gov/pubmed/29544499"^^ . _:vb50944622 . _:vb50944622 . _:vb50944622 . _:vb50944622 "url:https://www.ncbi.nlm.nih.gov/pubmed/19061984"^^ . _:vb50944622 . _:vb50944622 "A tooth disease characterized by incomplete tooth eruption despite the presence of a clear eruption pathway that has_material_basis_in heterozygous mutation in PTHR1 on chromosome 3p21.31."^^ . _:vb50944622 .