title: Gastrointestinal cancer: epidemiology and experimental studies.
mesh_terms: D000818:Animals; D000970:Antineoplastic Agents; D002273:Carcinogens / Q000378:metabolism; D004032:Diet; D005770:Gastrointestinal Neoplasms / Q000453:epidemiology / Q000378:metabolism; D006801:Humans; D007564:Japan; D008113:Liver Neoplasms / Q000453:epidemiology / Q000378:metabolism; D009153:Mutagens; D051381:Rats; D012621:Seasons; D012643:Selenium / Q000494:pharmacology*; D014481:United States; D014881:Water Supply
chemical_list: D000970:Antineoplastic Agents; D002273:Carcinogens; D009153:Mutagens; D012643:Selenium