Kazal, R. K., M. S. S. Ullah, D. Afzalunnessa, H. Lona, and S. Selim. “Seroprevalence Of Hepatitis B, Hepatitis C And Human Immunodeficiency Viruses Amongst Drug Users In 4 Border Cities Of Bangladesh”. Journal of Shaheed Suhrawardy Medical College, vol. 2, no. 1, Oct. 2012, pp. 22-23, doi:10.3329/jssmc.v2i1.12347.