_:vb50942781 . _:vb50942781 . _:vb50942781 "A cataract that has_material_basis_in heterozygous mutation in the PITX3 gene on chromosome 10q24."^^ . _:vb50942781 . _:vb50942781 . _:vb50942781 . _:vb50942781 "url:https://www.ncbi.nlm.nih.gov/pubmed/9620774"^^ .