The sigmoidoscope: used too much or too little?
Semlacher
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University of Alberta, Hospital Site, 8440-112th Street NW, Edmonton, Alberta T6G 2B7, Canada.
D003113:Colonoscopy / Q000706:statistics & numerical data; D006471:Gastrointestinal Hemorrhage / Q000209:etiology; D006801:Humans; D010818:Practice Patterns, Physicians'; D012007:Rectum; D012812:Sigmoidoscopy / Q000706:statistics & numerical data*