,怀

Mary M Schneider1, Richard J Fehring1, Thomas Paul Bouchard2

  • 1Marquette University College of Nursing, Institute for Natural Family Planning, Milwaukee, WI, USA.

The Linacre quarterly
|June 16, 2023
PubMed
概括

这项研究使用激素监测修订了产后生育意识协议,发现意外怀孕率较低. 更新的方法虽然有效,但与原始方法相比,增加了成本.