Poonam Sagar, Nand Kishor, Ranjan Kumar Srivastava, Satyendra Narayan Singh, and Rajneesh Kumar Ranjan. 2021. “Prevalence of Hepatitis-B Surface Antigen in Subjects Attending OPD of Tertiary Care Institution”. International Journal of Health and Clinical Research 4 (12):216-18. https://www.ijhcr.com/index.php/ijhcr/article/view/1895.