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Cumulative probability of medication use and surgery in Korean patients with Crohn disease. (A) 5-aminosalicylates (5-ASA), (B) thiopurines, (C) anti-tumor necrosis factor (anti-TNF) agents, and (D) intestinal resection. Adapted from Ye et al. [19] 9th Congress of European Crohn's and Colitis Organization.
