title: X-ray diagnosis of protruding lesions of the stomach.
mesh_terms: D001466:Barium Sulfate; D003937:Diagnosis, Differential; D006801:Humans; D011127:Polyps / Q000000981:diagnostic imaging*; D011859:Radiography; D013274:Stomach Neoplasms / Q000000981:diagnostic imaging*
chemical_list: D001466:Barium Sulfate