title: Randomized trial of aspirin, vitamin E raises questions for future chemoprevention studies.
authors.forename: Elana
authors.initials: E
authors.lastname: Hayasaka
mesh_terms: D000894:Anti-Inflammatory Agents, Non-Steroidal / Q000627:therapeutic use; D016588:Anticarcinogenic Agents / Q000008:administration & dosage / Q000627:therapeutic use*; D000975:Antioxidants / Q000627:therapeutic use; D001241:Aspirin / Q000008:administration & dosage / Q000627:therapeutic use*; D001521:Behavior Therapy; D003110:Colonic Neoplasms / Q000517:prevention & control; D004334:Drug Administration Schedule; D006801:Humans; D009369:Neoplasms / Q000517:prevention & control*; D016032:Randomized Controlled Trials as Topic; D012643:Selenium / Q000627:therapeutic use; D014810:Vitamin E / Q000627:therapeutic use*
chemical_list: D000894:Anti-Inflammatory Agents, Non-Steroidal; D016588:Anticarcinogenic Agents; D000975:Antioxidants; D014810:Vitamin E; D012643:Selenium; D001241:Aspirin