title: Diagnosis of gastric polyps by double contrast method.
mesh_terms: D003937:Diagnosis, Differential; D006801:Humans; D011127:Polyps / Q000000981:diagnostic imaging*; D011859:Radiography; D013274:Stomach Neoplasms / Q000000981:diagnostic imaging*; D013276:Stomach Ulcer / Q000000981:diagnostic imaging