Inherited determinants of Crohn's disease and ulcerative colitis phenotypes: a genetic association study by Cleynen, I, Boucher, G, Jostins, L, Schumm, LP, Zeissig, S, Ahmad, T, Andersen, V, Andrews, JM, Annese, V, Brand, S, Brant, SR, Cho, JH, Daly, MJ, Dubinsky, M, Duerr, RH, Ferguson, LR, Franke, A, Gearry, RB, Goyette, P, Hakonarson, H, Halfvarson, J, Hov, JR, Huang, H, Kennedy, NA, Kupcinskas, L, Lawrance, IC, Lee, JC, Satsangi, J, Schreiber, S, Théâtre, E, Van Der Meulen-De Jong, AE, Weersma, RK, Wilson, DC, International Inflammatory Bowel Disease Genetics Consortium, Parkes, M, Vermeire, S, Rioux, JD, Mansfield, J, Silverberg, MS, Radford-Smith, G, McGovern, DPB, Barrett, JC, Lees, CW