Fertility in the cycle predicts women's interest in sexual opportunism

@article{Gangestad2010FertilityIT,
  title={Fertility in the cycle predicts women's interest in sexual opportunism},
  author={Steven W. Gangestad and Randy Thornhill and Christine E. Garver-Apgar},
  journal={Evolution and Human Behavior},
  year={2010},
  volume={31},
  pages={400-411}
}

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