Paiva, S. P.; Brandão, E. R. Commercialization of Emergency Contraception in a Drugstore in the City of Rio De Janeiro: Ethical and Methodological Aspects of an Ethnographic Research . Saúde Soc. 2014, 23 (4), 1417-1430. https://doi.org/10.1590/S0104-12902014000400024.