相关实验视频

H S Klonoff-Cohen1, D A Savitz, R C Cefalo

  • 1Department of Epidemiology, School of Public Health, University of North Carolina, Chapel Hill.

JAMA
|December 8, 1989
PubMed
概括

像避孕套一样,阻断精子暴露的避孕方法可能会增加孕前的风险. 在一项病例对照研究中,较少的精子暴露与更高的孕前发病率相关.

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