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Burisch, Johan; Safroneeva, Ekaterina; Laoun, Raphael; Ma, Christopher (2023). Lack of benefit for early escalation to advanced therapies in ulcerative colitis: critical appraisal of current evidence. Journal of Crohn's & colitis, 17(12), pp. 2002-2011. Oxford University Press 10.1093/ecco-jcc/jjad106
