Ovarian hormones and reproductive risk factors for breast cancer in premenopausal women: the Norwegian EBBA-I study.

Publication Type:

Journal Article

Source:

Human reproduction (Oxford, England), Volume 26, Issue 6, p.1519-29 (2011)

Keywords:

2011, Public Health Sciences Division

Abstract:

Ovarian hormones, parity and length of 'menarche-to-first birth' time interval are known risk factors for breast cancer, yet the associations between 17β-estradiol, progesterone and these reproductive factors remain unclear.