Screening for colorectal cancer.
Oliver
R T
RT
D015179:Colorectal Neoplasms / Q000191:economics / Q000517:prevention & control*; D004032:Diet; D015444:Exercise; D006266:Health Education; D006801:Humans; D008403:Mass Screening / Q000191:economics*; D008875:Middle Aged; D012812:Sigmoidoscopy / Q000191:economics*