title: The mechanism of carcinogenesis in the gastrointestinal tract.
authors: M J
authors: MJ
authors: Hill
mesh_terms: D003110:Colonic Neoplasms / Q000209:etiology*; D003431:Cross-Cultural Comparison; D006801:Humans; D012004:Rectal Neoplasms / Q000209:etiology*; D012307:Risk Factors; D013274:Stomach Neoplasms / Q000209:etiology*