Masem Afzal, Muhammad Faiq, Fahad Aman Khan, Imran Khan, Muhammad Maqsood, Umar Farooq Dar, Muhammad Arslan, Ayesha Kaleem 2023. Opting Biological and Targeted Synthetic Disease-modifying Antirheumatic drugs: Willingness to Pay, Perceptions and barriers among Pakistani Rheumatoid Arthritis Patients. Pakistan Journal of Medical & Health Sciences. 17, 11 (Nov. 2023), 120. DOI:https://doi.org/10.53350/pjmhs020231711120.