Association of HLA-DRB1 haplotypes with rheumatoid arthritis severity, mortality, and treatment response. Viatte S, Plant D, Han B, et al. Association of HLA-DRB1 haplotypes with rheumatoid arthritis severity, mortality, and treatment response. JAMA. 2015;313(16):1645-56. doi:10.1001/jama.2015.3435 Read more