title: [Chemoprevention in gastrointestinal cancer: progress and future directions].
authors.affiliation: Department of Gastroenterology and Hepatology, Graduate School, Tokyo Medical and Dental University.
authors.forename: Naoaki
authors.initials: N
authors.lastname: Dan
authors.forename: Mamoru
authors.initials: M
authors.lastname: Watanabe
authors.forename: Masaki
authors.initials: M
authors.lastname: Kitajima
mesh_terms: D018890:Chemoprevention; D003110:Colonic Neoplasms / Q000517:prevention & control*; D004067:Digestive System Neoplasms / Q000517:prevention & control*; D005260:Female; D006801:Humans; D008113:Liver Neoplasms / Q000517:prevention & control; D008297:Male; D013274:Stomach Neoplasms / Q000517:prevention & control