[Efficacy and adverse effects of hormonal contraceptives: comparative study]

José Antonio Carbajal-Ugarte1, Adrián Cárdenas-Blanco, Eduardo Pastrana-Huanaco

  • 1Hospital General de Zona con Medicina Familiar 12, Instituto Mexicano del Seguro Social, Cuidad Lázaro Cárdenas Michoacán. jose.carbajal@imss.gob.mx

Abstract

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