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MLA Citation
Laurent Peyrin-Biroulet et al.. “Etrolizumab as induction and maintenance therapy for ulcerative colitis in patients previously treated with tumour necrosis factor inhibitors (HICKORY): a phase 3, randomised, controlled trial.” Lancet gastroenterology and hepatology, vol. 7, 2022, pp. 128–140. http://access.bl.uk/ark:/81055/vdc_100148631008.0x000001