[On methods of diagnosis from x-ray findings in the examination of the gastrointestinal system (with special reference to the stomach and duodenum) and the number of patients able to undergo examination].
D004386:Duodenum; D041981:Gastrointestinal Tract / Q000000981:diagnostic imaging*; D006801:Humans; D011859:Radiography; D013270:Stomach; D014965:X-Rays
GASTROINTESTINAL SYSTEM/radiography