P. E. Mkhize and A. Viljoen, “Leflunomide as an alternative csDMARD for rheumatoid arthritis in a resource-constrained setting: A real-life experience”, S Afr Med J, vol. 115, no. 4, p. e2536, May 2025, doi: 10.7196/SAMJ.2025.v115i4.2536.