Paiva, Sabrina Pereira, and Elaine Reis Brandão. 2014. “ Commercialization of Emergency Contraception in a Drugstore in the City of Rio De Janeiro: Ethical and Methodological Aspects of an Ethnographic Research ”. Saúde E Sociedade 23 (4): 1417-30. https://doi.org/10.1590/S0104-12902014000400024.