Off-label upadacitinib 60 mg daily in the rescue of refractory ulcerative colitis: an open-labeled cohort study2026-07-080 PRE AI BBonita Gu *VViraj Kariyawasam RRupert W Leong DOI:10.1093/ecco-jcc/jjag091OriginalOriginal request for helpShareSaveAbstract En 中文 Dear Editor,