Uregwu Agnes Edia-Asuke, Zainab Abubakar and Sunday Asuke 2016. Seroprevalence of Hepatitis B Surface Antigen among Out Patients Attending a Tertiary Hospital in Kaduna State, Nigeria. UMYU Journal of Microbiology Research (UJMR). 1, 1 (Dec. 2016), 38–44. DOI:https://doi.org/10.47430/ujmr.1611.006.