Mahmud, S., A. B. Karim, J. Alam, M. Z. Islam, N. Sarker, A. Munshi, and S. Sarker. “Hepatitis A Virus Vaccination Strategy and Pre-Immunization Screening of Bangladeshi Children”. Bangladesh Journal of Medical Science, vol. 14, no. 1, Jan. 2015, pp. 65-69, doi:10.3329/bjms.v14i1.21561.