BANK1 and systemic lupus erythematosus: The linkage disequilibrium groups AA 13 and EUR 6 contained, what could be considered the best meta-analysis hits, the SNP rs71597109 and markers described as the best causal hits of the BANK1 association to SLE, such as the branch-point site SNP rs17266594 on intron two, and the R61H rs10516487 on exon two.