_:vb50943052 . _:vb50943052 . _:vb50943052 "url:https://www.ncbi.nlm.nih.gov/pubmed/10690843"^^ . _:vb50943052 "A retinitis pigmentosa that has_material_basis_in variation in the chromosome region Xq26-q27."^^ . _:vb50943052 . _:vb50943052 . _:vb50943052 .