TY - BOOK ED - World Health Organization. ED - Expert Working Group Meeting to Update the Selected Practice Recommendations for Contraceptive Use TI - Recomendaciones prácticas seleccionadas para el uso de anriconceptivos SN - 9243562843 PY - 2005/// CY - Ginebra PB - Organización Mundial de la Salud KW - Contraception KW - methods KW - standards KW - Contraceptive agents, Female KW - Contraceptives, Oral, Hormonal KW - Intrauterine devices KW - utilization KW - Natural family planning methods KW - Evidence-based medicine KW - Practice guidelines N1 - 4-page 2008 Update Document WHO/RHR/08.17 UR - http://apps.who.int/iris/ ER -