Ndako, J., Echeonwu, G., Olabode, A., Nwankiti, O., Aimakhu, S., Onovoh, E., Chukwuekezie, J., Banda, J. and Paul, G. (2010) “Seroprevalence of Hepatitis B Surface Antigen (HBsAg) among Children of Primary School Age in a Community, North-Central, Nigeria”, Sierra Leone Journal of Biomedical Research, 2(1), pp. 32–37. doi: 10.4314/sljbr.v2i1.56600.