Do all patients with small distal polyps need colonoscopy?
D000236:Adenoma / Q000175:diagnosis*; D003111:Colonic Polyps / Q000175:diagnosis*; D003113:Colonoscopy; D006801:Humans; D008403:Mass Screening; D008875:Middle Aged; D011237:Predictive Value of Tests; D012812:Sigmoidoscopy