Reproductive Factors and Breast Cancer
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TL;DR
More research is needed into the etiologic roles of menstrual cycle characteristics, especially research examining the probability of prolonged exposure to both estrogens and progesterone concurrently.
Abstract
Journal Article Reproductive Factors and Breast Cancer Get access Jennifer L. Kelsey, Jennifer L. Kelsey 1Stanford University School of MedicineStanford, CA Dr. Jennifer L. Kelsey, Division of Epidemiology, Department of Health Research and Policy, Stanford University School of Medicine, Health Research and Policy Building, Stanford, CA 94305-5092 Search for other works by this author on: Oxford Academic PubMed Google Scholar Marilie D. Gammon, Marilie D. Gammon 2Columbia University School of Public HealthNew York, NY Search for other works by this author on: Oxford Academic PubMed Google Scholar Esther M. John Esther M. John 1Stanford University School of MedicineStanford, CA Search for other works by this author on: Oxford Academic PubMed Google Scholar Epidemiologic Reviews, Volume 15, Issue 1, 1993, Pages 36–47, https://doi.org/10.1093/oxfordjournals.epirev.a036115 Published: 01 March 1993 Article history Received: 18 November 1992 Revision received: 25 February 1993 Published: 01 March 1993