_:vb50943034 . _:vb50943034 . _:vb50943034 . _:vb50943034 "url:https://www.ncbi.nlm.nih.gov/pubmed/16938425"^^ . _:vb50943034 . _:vb50943034 "A retinitis pigmentosa that has_material_basis_in mutation in the PRCD gene on chromosome 17q25."^^ . _:vb50943034 .