@inbook{1120413907,
author={Ronald T. Burkman, MD and Amnon Brzezinski, MD},
editor={DeCherney, Alan H. and Nathan, Lauren and Laufer, Neri and Roman, Ashley S.},
title={Anticoncepción y planificación familiar},
booktitle={Diagnóstico y tratamiento ginecoobstétricos, 11e},
publisher={McGraw-Hill Education},
address={New York, NY},
year={2015},
url={accessmedicina.mhmedical.com/content.aspx?aid=1120413907}
}