C. Tarqui-Mamani, A. Barreda, M. Barreda, and H. Sanabria-Rojas, “Pervalence of the attempts to stop pregnancy and associated factors in a marginal suburban comunnity in Lima-Peru, 2006”, Rev Peru Med Exp Salud Publica, vol. 27, no. 1, Mar. 2010, doi: 10.17843/rpmesp.2010.271.1442.