The Threshold at Which Elderly Men from Rural China Who Visit Female Sex Workers Are Significantly More at Risk of Becoming HIV-Positive. The Journal of Reproductive Medicine, [S. l.], v. 67, n. 1, p. 481–490, 2024. Disponível em: https://www.thereproductivemedicine.com/Home/article/view/5.. Acesso em: 18 jun. 2025.