Cite
MLA Citation
D Carpio et al.. “P412 Effectiveness of ustekinumab in fistulising perianal Crohn′s disease refractory or intolerant to anti-TNF.” Journal of Crohn's and colitis, vol. 15, n.d., pp. S419–S420. http://access.bl.uk/ark:/81055/vdc_100130765214.0x000015