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MLA Citation
M De Gregorio et al.. “P399 Higher anti-tumour necrosis factor-alpha drug levels are associated with improved radiological outcomes in patients with perianal fistulising Crohn's disease: A retrospective multi-centre study.” Journal of Crohn's and colitis, vol. 15, n.d., pp. S408–S409. http://access.bl.uk/ark:/81055/vdc_100130764963.0x00000a