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Medical treatment approaches for ulcerative colitis.
PSL, prednisolone; JAK, Janus kinase; AZA, azathioprine; 6-MP, 6-mercaptopurine; 5-ASA, aminosalicylates; TNF, tumor necrosis factor. Modified from Nakase H. How to select and use IBD drugs. Tokyo: Yodosha Co., Ltd., 2015, with permission.1
