Isam M Elkhidir, H.D.M.E.Y.K.A.E.M.N.W.A.E. 2013. SERO-PREVALENCE OF HEPATITIS B VIRUS (HBsAg) AND HEPATITIS C VIRUS (Anti-HCV) AMONG HIV-INFECTED IN SUDAN. Journal of Biomedical and Pharmaceutical Research. 2, 6 (Dec. 2013).