_:vb50943027 . _:vb50943027 . _:vb50943027 "A retinitis pigmentosa that has_material_basis_in mutation in the BBS2 gene on chromosome 16q13."^^ . _:vb50943027 . _:vb50943027 . _:vb50943027 "url:https://www.ncbi.nlm.nih.gov/pubmed/25541840"^^ . _:vb50943027 .