MacLean, B., R. F. Hess, E. Bonvillain, J. Kamate, D. Dao, A. Cosimano, and S. Hoy. “Seroprevalence of Hepatitis B Surface Antigen Among Pregnant Women Attending the Hospital for Women & Children in Koutiala, Mali”. South African Medical Journal, vol. 102, no. 1, Mar. 2012, https://www.ajol.info/index.php/samj/article/view/74452.