Sequence variants in the autophagy gene IRGM and multiple other replicating loci contribute to Crohn's disease susceptibility. by Parkes, M, Barrett, J, Prescott, N, Tremelling, M, Anderson, C, Fisher, SA, Roberts, R, Nimmo, E, Cummings, F, Soars, D, Drummond, H, Lees, C, Khawaja, SA, Bagnall, R, Burke, D, Todhunter, C, Ahmad, T, Onnie, C, McArdle, W, Strachan, D, Bethel, G, Bryan, C, Lewis, C, Deloukas, P, Forbes, A