Sigmoidoscopy screening for colorectal cancer.
Imperiale
Thomas F
TF
D015179:Colorectal Neoplasms / Q000175:diagnosis* / Q000517:prevention & control; D006801:Humans; D008403:Mass Screening; D008875:Middle Aged; D009664:Norway; D016032:Randomized Controlled Trials as Topic; D012812:Sigmoidoscopy