_:vb50944549 . _:vb50944549 . _:vb50944549 "url:https://www.ncbi.nlm.nih.gov/pubmed/10986047"^^ . _:vb50944549 . _:vb50944549 . _:vb50944549 . _:vb50944549 "A psoriasis that has_material_basis_in variation in a region on chromosome 19p13 that includes BSG."^^ .