Assertion: breast cancer's estrogen | /r/HasProperty | main female hormone
Facets:
value: in women
type: LOCATION
Source sentences:
text: In rare cases, gynecomastia occurs because tumors or diseases of certain endocrine (hormone-producing) glands cause a man's body to make more estrogen (the main female hormone).
text: Progesterone and estrogen are the two main sex hormones in women.