Ahmad, Ibrar, Amjad Taqweem, Zafar Ali, Intekhab Alam, and Amjad Mehboob. 2012. “ANTI-CYCLIC CITRULLINATED PEPTIDE ANTIBODIES AS A TOOL IN DIFFRENTIATING PATIENTS WITH RHEUMATOID ARTHRITIS FROM PATIENTS WITH CHRONIC HEPATITIS C INFECTION-ASSOCIATED POLYARTICULAR INVOLVEMENT”. Journal of Postgraduate Medical Institute 26 (3). https://www.jpmi.org.pk/index.php/jpmi/article/view/1296.