Zagorodnieva, Oksana, and Liliya Ponomaryova. “Threat of Hiv Infection for Public Health: 40 Years of Confrontation”. The Journal of V. N. Karazin Kharkiv National University, series "Medicine"0, no. 41 (February 23, 2021). Accessed April 24, 2024. https://periodicals.karazin.ua/medicine/article/view/16879.