Soares, P. da S. and Brandão, E.R. 2012. Counseling and testing for HIV as a prevention strategy: an international review of published research, 1999-2011. Saúde e Sociedade. 21, 4 (Dec. 2012), 940–953. DOI:https://doi.org/10.1590/S0104-12902012000400013.