_:vb50943892 "url:https://www.ncbi.nlm.nih.gov/pubmed/18758464"^^ . _:vb50943892 . _:vb50943892 . _:vb50943892 . _:vb50943892 . _:vb50943892 "An inflammatory bowel disease that has_material_basis_in variation in the chromosome 20q13."^^ . _:vb50943892 .