title: Interpreting precursor studies: what polyp trials tell us about large-bowel cancer.
authors: Division of Cancer Prevention and Control, National Cancer Institute, Bethesda, Md 20852.
authors: A
authors: A
authors: Schatzkin
authors: L S
authors: LS
authors: Freedman
authors: S M
authors: SM
authors: Dawsey
authors: E
authors: E
authors: Lanza
mesh_terms: D011125:Adenomatous Polyposis Coli / Q000473:pathology*; D002471:Cell Transformation, Neoplastic; D003110:Colonic Neoplasms / Q000517:prevention & control*; D006801:Humans; D009364:Neoplasm Recurrence, Local / Q000517:prevention & control