title: A method for the demonstration of the mucosal pattern of the duodenal cap.
mesh_terms: D000388:Air; D003287:Contrast Media; D004381:Duodenal Ulcer / Q000000981:diagnostic imaging*; D006801:Humans; D007413:Intestinal Mucosa / Q000000981:diagnostic imaging*; D008722:Methods; D011187:Posture; D011859:Radiography
chemical_list: D003287:Contrast Media