Kasianczuk M. H., Varban M. Yu., Kornilova M. S., Trofymenko O. V. Middle-aged and elderly MSM: why is it difficult to engage in HIV service organizations Ukr. socìum, 2021, 2(77): 183-197Language: Ukrainianhttps://doi.org/10.15407/socium2021.02.183 242 8 Article(UKR)(.pdf)