Right or left, right or wrong? Debate whirls over colorectal cancer distribution.
Milne
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D003113:Colonoscopy; D015179:Colorectal Neoplasms / Q000453:epidemiology* / Q000473:pathology*; D006801:Humans; D012307:Risk Factors; D012812:Sigmoidoscopy; D006113:United Kingdom / Q000453:epidemiology; D014481:United States / Q000453:epidemiology