12-32週目のインフリキシマブトラフ濃度は寛解導入の予後を予測する─多施設共同前向きプラセボ比較試験とその事後解析より
First trough level of infliximab at week 2 predicts outcomes of induction therapy in ulcerative colitis -- results from a multicenter prospective randomized controlled trial and its post hoc analysis