Koh, K.T., C.L. Teh, C.K. Cheah, G.R. Ling, M.C. Yong, H.C. Hong, and S.C. Gun. 2016. “Real-World Experiences of Folic Acid Supplementation (5 Versus 30 Mg/week) With Methotrexate in Rheumatoid Arthritis Patients: A Comparison Study”. Reumatismo 68 (2), 90-96. https://doi.org/10.4081/reumatismo.2016.872.