Cite
MLA Citation
P Zhu and B L Yang. “P650 Combination therapy for perianal fistulising Crohn's disease in biological era: What is the optimal time for surgical intervention?.” Journal of Crohn's and colitis, vol. 12, n.d., pp. S439–S440. http://access.bl.uk/ark:/81055/vdc_100095320744.0x000010