ASMA MUNIR, MONA AZIZ, ATIYA MAHBOOB, MANAAL AFZAAL. “Frequency of Rheumatoid Factor Positivity in Patients of Rheumatoid Arthritis Report of 95 Cases from Lahore, Pakistan”. Journal of Fatima Jinnah Medical University 7, no. 4 (July 15, 2018). Accessed May 19, 2024. https://jfjmu.com/index.php/ojs/article/view/439.