Barrientos Esquivel, A., A. Vega Montoya, C. Marín, and C. Gómez Ramírez. “Knowledge, Attitudes and Practices of Professionals in Pharmacy on Hormonal Contraception Emergency (ECP) in Costa Rica”. Población Y Salud En Mesoamérica, vol. 9, no. 2, Jan. 2012, doi:10.15517/psm.v9i2.725.