IKZF3 and ulcerative colitis: A haplotype at the IKZF3/ORMDL3 locus is associated with primary biliary cirrhosis, systemic lupus erythematosus, systemic sclerosis, Type 1 diabetes autoantibodies, type 1 diabetes, ulcerative colitis, Crohn’s disease, inflammatory bowel disease and rheumatoid arthritis (Hindorff et al. 2011) (Fig. 3c and Fig. S2 in Supplementary material 1).