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Assessment, endoscopy, and treatment in patients with acute severe ulcerative colitis during the COVID-19 pandemic (PROTECT-ASUC): a multicentre, observational, case-control study.
Sebastian S, Walker GJ, Kennedy NA, Conley TE, Patel KV, Subramanian S, Kent AJ, Segal JP, Brookes MJ, Bhala N, Gonzalez HA, Hicks LC, Mehta SJ, Lamb CA; PROTECT-ASUC Study Group. Sebastian S, et al. Lancet Gastroenterol Hepatol. 2021 Apr;6(4):271-281. doi: 10.1016/S2468-1253(21)00016-9. Epub 2021 Feb 2. Lancet Gastroenterol Hepatol. 2021. PMID: 33545083 Free PMC article.