ASHRAF, T., R. SULTANA, L. S. TALPUR, S. I. RASOOL, A. PATHAN, A. KUNDI, M. ISHAQ, K. ZAMAN, and A. M. A. FARUQUI. “THE FREQUENCY OF HBV, HCV AND HIV IN PATIENTS UNDERGOING PERCUTANEOUS MITRAL VALVULOPLASTY”. Pakistan Heart Journal, vol. 38, no. 1-2, May 2012, doi:10.47144/phj.v38i1-2.68.