The risk of breast cancer in postmenopausal women who have used estrogen replacement therapy.

@article{Wingo1987TheRO,
  title={The risk of breast cancer in postmenopausal women who have used estrogen replacement therapy.},
  author={Phyllis A. Wingo and Peter Mark Layde and Nancy C. Lee and George L Rubin and Howard W Ory},
  journal={JAMA},
  year={1987},
  volume={257 2},
  pages={209-15}
}
We studied the association between estrogen replacement therapy (ERT) and the risk of breast cancer as part of the Cancer and Steroid Hormone Study. All subjects in the analysis were postmenopausal women enrolled from eight geographic areas. Women 25 to 54 years old with newly diagnosed breast cancer were identified through population-based tumor registries and diagnosed between Dec 1, 1980, and Dec 31, 1982. Controls were selected from the same eight geographic areas by the random digit… CONTINUE READING

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