Umar Hayat Khan. Muhammad Ashraf, Ariz Marian, Ahmad ali. 2014. “Seroprevalence of Hepatitis B Among Healthy Blood Donors in Blood Banks of Khyber Pakhtunkhwa”. Journal of Peoples University of Medical &Amp; Health Sciences Nawabshah. (JPUMHS) 4 (1):20-25. http://121.52.155.46/index.php/ojs/article/view/124.