_:vb50943018 . _:vb50943018 . _:vb50943018 . _:vb50943018 "A retinitis pigmentosa that has_material_basis_in mutation in the BEST1 gene on chromosome 11q13."^^ . _:vb50943018 . _:vb50943018 "url:https://www.ncbi.nlm.nih.gov/pubmed/19853238"^^ . _:vb50943018 .