Seme, Assefa, Damen Haile Mariam, and Alemayehu Worku. 2021. “The Association Between Substance Abuse and HIV Infection Among People Visiting HIV Counseling and Testing Centers in Addis Ababa, Ethiopia”. The Ethiopian Journal of Health Development 19 (2). https://www.ejhd.org/index.php/ejhd/article/view/662.