[1]
Bukbuk, D., Bassi, A. and Mangoro, Z. 2005. Sero-prevalence of hepatitis B surface antigen among primary school pupils in rural Hawal valley, Borno State, Nigeria. Journal of Community Medicine and Primary Health Care. 17, 1 (Dec. 2005), 20–23. DOI:https://doi.org/10.4314/jcmphc.v17i1.32420.