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
Terao C, Yamakawa N, Yano K, et al. Rheumatoid Factor Is Associated With the Distribution of Hand Joint Destruction in Rheumatoid Arthritis. Arthritis Rheumatol. 2015;67(12):3113-23. doi:10.1002/art.39306