What is the optimal strategy for colon cancer surveillance in patients with ulcerative colitis?
D001706:Biopsy / Q000379:methods; D003082:Colectomy; D003093:Colitis, Ulcerative / Q000150:complications*; D003113:Colonoscopy / Q000379:methods / Q000592:standards*; D015179:Colorectal Neoplasms / Q000209:etiology* / Q000517:prevention & control*; D005260:Female; D006801:Humans; D008297:Male; D012307:Risk Factors