Mehret, M., L. Khodakevich, D. Zewdie, G. Gizaw, S. Ayehune, B. Shanko, B. Gebrhewot, A. Gemeda, G. Adal, T. Abebe, and R. Bekele. “HIV-1 INFECTION AMONG EMPLOYEES OF THE ETHIOPIAN FREIGHT TRANSPORT CORPORATION”. The Ethiopian Journal of Health Development, vol. 4, no. 2, June 2017, https://ejhd.org/index.php/ejhd/article/view/1232.