Frei SM, Hemsley C, Pesch T, Lang S, Weber A, Jehle E, Rühl A, Fried M, Rogler G, Scharl M. The Role for Dickkopf-Homolog-1 in the Pathogenesis of Crohn’s Disease-Associated Fistulae. PLoS ONE. 2013 Nov 08;8(11):e78882. doi: 10.1371/journal.pone.0078882.