Li J, Tao JH, Gao W, Fan Y, Lu MM, Li R, Li XP, Ye DQ. Lack of association of Toll-like receptor 9 polymorphisms with susceptibility to systemic lupus erythematosus in an Asian population: a meta-analysis. Mod Rheumatol. 2012 Aug;22(4):550–6. doi: 10.1007/s10165-011-0573-x. PMID: 22228476.