title: An evaluation of routine proctosigmoidoscopy.
mesh_terms: D012809:Colon, Sigmoid / Q000175:diagnosis*; D004912:Erythrocytes; D006801:Humans; D010808:Physical Examination; D012007:Rectum / Q000175:diagnosis*; D012812:Sigmoidoscopy
keywords: ERYTHROCYTES; RECTUM/examination; SIGMOID/examination