Contraceptive practices and trends in Spain: 1997–2003

Autor: Lete, I., Dueñas, J.L., Martínez-Salmeán, J., Parrilla, J.J., Serrano, I., Bermejo, R., Coll, C., Doval, J.L.
Zdroj: In European Journal of Obstetrics and Gynecology 2007 135(1):73-75
Databáze: ScienceDirect