Koh, K.T., C.L. Teh, C.K. Cheah, G.R. Ling, M.C. Yong, H.C. Hong, and S.C. Gun. “Real-World Experiences of Folic Acid Supplementation (5 Versus 30 mg/week) With Methotrexate in Rheumatoid Arthritis Patients: A Comparison Study”. Reumatismo 68, no. 2 (September 9, 2016): 90–96. Accessed April 19, 2024. https://www.reumatismo.org/reuma/article/view/872.