title: Sigmoidoscopy: a necessary practice?
authors.forename: S
authors.initials: S
authors.lastname: Roedde
mesh_terms: D015179:Colorectal Neoplasms / Q000401:mortality / Q000517:prevention & control*; D006801:Humans; D008403:Mass Screening / Q000379:methods*; D009780:Occult Blood; D012307:Risk Factors; D012812:Sigmoidoscopy