Leiden University Scholarly Publications

Groof, E.J. de; Buskens, C.J.; Ponsioen, C.Y.; Dijkgraaf, M.G.W.; D'Haens, G.R.A.M.; Srivastava, N.; ... ; Bemelman, W.A. 2015

Multimodal treatment of perianal fistulas in Crohn's disease: seton versus anti-TNF versus advancement plasty (PISA): study protocol for a randomized controlled trial

Article / Letter to editor

open access