Genome-wide association study identifies distinct genetic contributions to prognosis and susceptibility in Crohn’s disease by Lee, J, Biasci, D, Roberts, R, Gearry, R, Mansfield, J, Ahmad, T, Prescott, N, Satsangi, J, Wilson, D, Jostins, L, Anderson, C, UK IBD Genetics Consortium, Traherne, J, Lyons, P, Parkes, M, Smith, K