Re: Risk of perforation after colonoscopy and sigmoidoscopy: a population-based study.
Schoen
Robert E
RE
Levin
Theodore R
TR
D003113:Colonoscopy / Q000009:adverse effects*; D015179:Colorectal Neoplasms / Q000517:prevention & control*; D006801:Humans; D007416:Intestinal Perforation / Q000209:etiology*; D008403:Mass Screening / Q000009:adverse effects / Q000379:methods; D018570:Risk Assessment; D012307:Risk Factors; D012812:Sigmoidoscopy / Q000009:adverse effects