_:vb50952574 . _:vb50952574 . _:vb50952574 . _:vb50952574 . _:vb50952574 "A gastrointestinal system disease that is located_in the mouth."^^ . _:vb50952574 . _:vb50952574 "url:http://en.wikipedia.org/wiki/Oral_and_maxillofacial_pathology"^^ .