Colon cancer screening: the case for sigmoidoscopy.
Feller
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Brown University School of Medicine, Providence, RI 02912, USA.
D002986:Clinical Trials as Topic; D003110:Colonic Neoplasms / Q000453:epidemiology / Q000517:prevention & control*; D006801:Humans; D008403:Mass Screening; D020694:Sigmoidoscopes; D012812:Sigmoidoscopy / Q000379:methods; D014481:United States / Q000453:epidemiology