Natural History of Elderly-Onset Ulcerative Colitis: Results from a Territory-Wide Inflammatory BoweHY Shi, FK Chan, WK Leung, MK Li, CM Leung, SF Sze, JY Ching, FH Lo, SW Tsang, EH Shan, LY Mak, BC Lam, AJ Hui, SH Wong, MT Wong, IF...