X. T. Wang, P. Li, T. S. Xu, R. Ding, X. Zhang, and L. Q. Bi, “Effect of iguratimod and methotrexate on RANKL and OPG expression in serum and IL-1β-induced fibroblast-like synoviocytes from patients with rheumatoid arthritis”, Cell Mol Biol (Noisy-le-grand), vol. 62, no. 12, pp. 44–50, Oct. 2016.