N. Zafar, Bilal Azeem Butt, Zia-ul-Haq, Faizan Ahmad, and Sumbal Saleem, “Comparison of Clinical Effectiveness and Tolerability of Single versus Split Methotrexate Doses as Initial Therapy in Rheumatoid Arthritis”, J Fatima Jinnah Med Univ, vol. 19, no. 3, pp. 125–29, Mar. 2026.