ROBLES, Rafaela R.; SHEPARD, Elizabeth W. Accesing Hard-to-Reach Populations: the Illicit Drug Market as a Workplace of the Outreach Worker in Puerto Rico. Puerto Rico Health Sciences Journal, [S. l.], v. 23, n. 3, 2010. Disponível em: https://prhsj.rcm.upr.edu/index.php/prhsj/article/view/567. Acesso em: 28 nov. 2025.