Mahmud, S., M. Rahman, F. Tasneem, M. Afroz, S. S. Ahmed, and M. Hussain. “Surface Antigen (HBsAg) Negative Hepatitis B Virus in Bangladesh: Warrants the Screening for Blood Donors”. Bangladesh Journal of Child Health, vol. 41, no. 3, June 2018, pp. 181-8, doi:10.3329/bjch.v41i3.36954.