title: Occult injuries during colonoscopy. Measurement of forces required to injure the colon and report of cases.
mesh_terms: D000368:Aged; D000818:Animals; D003106:Colon / Q000293:injuries*; D004285:Dogs; D006801:Humans; D007416:Intestinal Perforation / Q000209:etiology*; D008297:Male; D009780:Occult Blood; D011312:Pressure; D012812:Sigmoidoscopy / Q000009:adverse effects*