title: Invitation for flexible sigmoidoscopy screening reduced colorectal cancer and colorectal cancer mortality.
authors.forename: Robert
authors.initials: R
authors.lastname: Fletcher
mesh_terms: D015179:Colorectal Neoplasms / Q000453:epidemiology*; D055088:Early Detection of Cancer; D005260:Female; D006801:Humans; D008297:Male; D012812:Sigmoidoscopy