[X-ray diagnosis of gastric cancer].
D002299:Cardia / Q000000981:diagnostic imaging; D003937:Diagnosis, Differential; D006801:Humans; D011859:Radiography; D013270:Stomach / Q000000981:diagnostic imaging; D013274:Stomach Neoplasms / Q000000981:diagnostic imaging*; D013276:Stomach Ulcer / Q000000981:diagnostic imaging