NFKB1 and B-cell chronic lymphocytic leukemia: The risk allele at this locus is also in strong LD with variants previously associated with increased risk of inflammatory bowel disease19, and in weaker LD with several risk variants for chronic lymphocytic leukemia (Supplementary Table 13, Fig. 5a), suggesting the pattern of pleiotropy that is similar to the NFKB1 locus.