S. Samreen, B. Salim, and A. Nasim, “SAFETY OF METHOTREXATE AND LEFLUNOMIDE AS A COMBINATION THERAPY IN PATIENTS OF RHEUMATOID ARTHRITIS: Methotrexate And Leflunomide in Rheumatoid Arthritis”, Pak Armed Forces Med J, vol. 67, no. 6, pp. 988–95, Dec. 2017, Accessed: Apr. 16, 2025. [Online]. Available: https://pafmj.org/PAFMJ/article/view/1084