Single-versus double-contrast barium studies in elderly patients.
Millward
S
S
D000368:Aged; D001466:Barium Sulfate; D003111:Colonic Polyps / Q000000981:diagnostic imaging*; D004733:Enema; D006801:Humans; D011187:Posture; D011859:Radiography
D001466:Barium Sulfate