Journal of Crohn's and Colitis
Journal of Crohn's and Colitis > 2011 > 5 > 3 > 189-195
Journal of Crohn's and Colitis > 2012 > 6 > 4 > 470-475
Journal of Crohn's and Colitis > 2013 > 7 > 12 > 974-981
Journal of Crohn's and Colitis > 2014 > 8 > 11 > 1444-1453