title: Colorectal-cancer screening--coming of age.
authors.forename: Theodore R
authors.initials: TR
authors.lastname: Levin
authors.forename: Douglas A
authors.initials: DA
authors.lastname: Corley
mesh_terms: D003113:Colonoscopy; D015179:Colorectal Neoplasms / Q000453:epidemiology* / Q000401:mortality*; D055088:Early Detection of Cancer; D005260:Female; D006801:Humans; D008297:Male; D009780:Occult Blood; D012812:Sigmoidoscopy