J. C. Forbi, N. Onyemauwa, S. D. Gyar, A. O. Oyeleye, P. Entonu, and S. M. Agwale, “ High prevalence of hepatitis B virus among female sex workers in Nigeria ”, Rev. Inst. Med. Trop. São Paulo, vol. 50, no. 4, pp. 219–221, Aug. 2008, Accessed: Jun. 02, 2024. [Online]. Available: https://revistas.usp.br/rimtsp/article/view/31189