Israr Ahmad, and Kafeel Ahmad. “Molecular Characterization of Hepatitis B Virus Basal Core Promoter and Precore Region of Isolates from Chronic Hepatitis B Patients”. Journal of the Pakistan Medical Association (March 4, 2021): 1-18. Accessed June 16, 2021. https://ojs.jpma.org.pk/index.php/public_html/article/view/868.