Next, a study by Hristova et al.27 in Bulgarian DM patients showed that rs1799964 (TNF -1031CC) genotype was found only among DM patients, and the rs1799964/rs1800630/rs1799724 /rs1800629/rs1800610 (TNF-1031C/-863C/-857C/-308G/ + 489G) haplotype was more frequent in DM women. Here, TNF is linked to dermatomyositis.