title: The efficacy of azathioprine and 6-mercaptopurine for the prevention of postoperative recurrence in patients with Crohn's disease remains uncertain.
authors.forename: William J
authors.initials: WJ
authors.lastname: Sandborn
authors.forename: Brian G
authors.initials: BG
authors.lastname: Feagan
mesh_terms: D001379:Azathioprine / Q000008:administration & dosage*; D002986:Clinical Trials as Topic; D003424:Crohn Disease / Q000517:prevention & control* / Q000601:surgery; D013505:Digestive System Surgical Procedures / Q000379:methods; D006801:Humans; D007166:Immunosuppressive Agents / Q000008:administration & dosage*; D015122:Mercaptopurine / Q000008:administration & dosage*; D011184:Postoperative Period; D055502:Secondary Prevention; D016896:Treatment Outcome
chemical_list: D007166:Immunosuppressive Agents; D015122:Mercaptopurine; D001379:Azathioprine