Ullah, Najib, Abdul Waris, Alam Zeb, Muheebur Rehman, Shawkat Ali, Muhammad Imran, and Zahid Muhammad wazir. “The Association of Anti-CCP Positivity With Extra-Articular Manifestations in Patients With Rheumatoid Arthritis: Anti-Cyclic Citrullinated Peptide Positivity and Extra-Articular Rheumatoid Arthritis”. Pakistan BioMedical Journal 7, no. 07 (July 31, 2024): 29–33. Accessed November 22, 2024. http://pakistanbmj.com/journal/index.php/pbmj/article/view/1098.