CD40LG and rheumatoid arthritis: The data were simulated to have a signal at 115.28 cM (SNPs 389–394) on chromosome 11 with the continuous outcome, IgM, at 49.46 cM (SNPs 152–154) on chromosome 6 with RA affection status, and at 94.27 cM (SNPs 267–270) with a controlled effect of DR on anti-CCp and an increased risk on RA on chromosome 18.