Routine proctosigmoidoscopy--its value as a screening procedure.
D000236:Adenoma / Q000175:diagnosis; D000694:Anal Gland Neoplasms / Q000175:diagnosis; D000818:Animals; D006801:Humans; D008297:Male; D011127:Polyps / Q000175:diagnosis; D012002:Rectal Diseases / Q000175:diagnosis*; D012004:Rectal Neoplasms / Q000175:diagnosis*; D012811:Sigmoid Neoplasms / Q000175:diagnosis*; D012812:Sigmoidoscopy