Trepka, MJ, Weisbord, JS, Zhang, GY
et al. (2003). Hepatitis B virus infection risk factors and immunity among sexually transmitted disease clinic clients
.
SEXUALLY TRANSMITTED DISEASES, 30(12), 914-918. 10.1097/01.OLQ.0000091126.08640.FC
Trepka, MJ, Weisbord, JS, Zhang, GY et al. (2003). Hepatitis B virus infection risk factors and immunity among sexually transmitted disease clinic clients
. SEXUALLY TRANSMITTED DISEASES, 30(12), 914-918. 10.1097/01.OLQ.0000091126.08640.FC