title: [A study of the stomach X-ray of elderly patients].
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D005767:Gastrointestinal Diseases / Q000000981:diagnostic imaging; D006801:Humans; D008297:Male; D008875:Middle Aged; D010276:Parasympatholytics; D011859:Radiography; D013270:Stomach / Q000000981:diagnostic imaging*
chemical_list: D010276:Parasympatholytics