Machado, Carla Jorge, and Mark Drew Crosland Guimarães. “On the Issue of Homophily in Respondent-Driven Sampling: Notes Based on the Case of Men Who Have Sex With Men in Belo Horizonte, Brazil”. Brazilian Journal of Population Studies 29, no. 2 (December 1, 2012): 493–496. Accessed March 31, 2025. https://rebep.org.br/revista/article/view/44.