RT Journal Article SR Electronic T1 When should prophylactic colectomy be considered in patients with ulcerative colitis? JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 221 OP 222 VO 70 IS 3 A1 Lashner, Bret A. YR 2003 UL http://www.ccjm.org/content/70/3/221.abstract AB