Neto, Carla, Sílvia Fraga, and Elisabete Ramos. “Illicit Substances Use by Portuguese Adolescents”. Revista de Saúde Pública 46, no. 5 (October 1, 2012): 808–815. Accessed July 17, 2024. https://revistas.usp.br/rsp/article/view/48354.