Risk factors for complications after total colectomy in ulcerative colitis - KIM, In Kyoung; PARK, Kyu Joo; KANG, Gyeong Hoon; IM, Jong Pil; KIM, Sang Gyun; JUNG, Hyun Chae; SONG, In Sung; KIM, Joo Sung (Turkish Journal of Gastroenterology, 2012)