_:vb50942751 . _:vb50942751 "url:https://www.ncbi.nlm.nih.gov/pubmed/9927684"^^ . _:vb50942751 "A cataract that has_material_basis_in heterozygous mutation in the gamma-D-crystallin gene (CRYGD) on chromosome 2q33."^^ . _:vb50942751 . _:vb50942751 . _:vb50942751 . _:vb50942751 .