_:vb50943020 . _:vb50943020 . _:vb50943020 "A retinitis pigmentosa that has_material_basis_in mutation in the NRL gene on chromosome 14q11."^^ . _:vb50943020 . _:vb50943020 . _:vb50943020 . _:vb50943020 "url:https://www.ncbi.nlm.nih.gov/pubmed/10192380"^^ .