Endogenous sex hormones and subsequent breast cancer in premenopausal women.

@article{Micheli2004EndogenousSH,
  title={Endogenous sex hormones and subsequent breast cancer in premenopausal women.},
  author={Andrea Micheli and Paola Muti and Giorgio Secreto and Vittorio Krogh and Elisabetta Meneghini and Elisabetta Venturelli and Sabina Sieri and Valeria Pala and Franco Berrino},
  journal={International journal of cancer},
  year={2004},
  volume={112 2},
  pages={312-8}
}
Because of large intra-individual variation in hormone levels, few studies have investigated the relation of serum sex hormones to breast cancer (BC) in premenopausal women. We prospectively studied this relation, adjusting for timing of blood sampling within menstrual cycle. Premenopausal women (5,963), recruited to the Hormones and Diet in the Etiology of Breast Tumors (ORDET) cohort study, provided a blood sample in the 20-24th day of their menstrual cycle. After 5.2 years of follow-up, 65… CONTINUE READING