RT Journal Article SR Electronic T1 The management of dysplasia associated with ulcerative colitis: colectomy versus continued surveillance JF Canadian Journal of Surgery JO CAN J SURG FD Canadian Medical Association SP 212 OP 214 VO 47 IS 3 A1 Friedlich, Martin S. A1 Guindi, Maha A1 Stern, Hartley S. YR 2004 UL http://canjsurg.ca/content/47/3/212.abstract