[X-ray examination of the small intestine - (1). Double contrast method as a routine examination].
D000388:Air; D001466:Barium Sulfate; D003287:Contrast Media; D006801:Humans; D007421:Intestine, Small / Q000000981:diagnostic imaging*; D011859:Radiography
D003287:Contrast Media; D001466:Barium Sulfate