title: Rectal bleeding: is it always an indication for colonoscopy?
authors.forename: John H
authors.initials: JH
authors.lastname: Bond
mesh_terms: D000368:Aged; D003113:Colonoscopy / Q000706:statistics & numerical data*; D015179:Colorectal Neoplasms / Q000517:prevention & control; D005260:Female; D006471:Gastrointestinal Hemorrhage / Q000175:diagnosis*; D006801:Humans; D008297:Male; D008875:Middle Aged; D012007:Rectum; D012017:Referral and Consultation / Q000706:statistics & numerical data; D018570:Risk Assessment; D012680:Sensitivity and Specificity; D014481:United States