© The Author 2007. Published by Oxford University Press.
CORRESPONDENCE |
Response: Re: Endogenous Steroid Hormone Concentrations and Risk of Breast Cancer Among Premenopausal Women
Affiliations of authors: Channing Laboratory, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA (AHE, SEH); Department of Epidemiology, Harvard School of Public Health, Boston, MA (AHE, SEH); Department of Obstetrics, Gynecology, and Reproductive Biology, Brigham and Women's Hospital and Harvard Medical School, Boston, MA (RLB)
Correspondence to: A. Heather Eliassen, ScD, Channing Laboratory, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, 181 Longwood Ave, Boston, MA 02115 (e-mail: heather.eliassen@channing.harvard.edu).
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We appreciate the comments by Micheli et al. The data they present are intriguing, particularly the stronger association they found between progesterone level and breast cancer risk after further adjustment for luteinizing hormone (LH) and follicle-stimulating hormone (FSH) levels. We agree with Micheli et al. that the timing of hormone measurements within the menstrual cycle is
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J Natl Cancer Inst 2007 99: 408-409.