Decrease in BC in USA in 2003
 

http://content.nejm.org/cgi/content/...1670?query=TOC

Hopeful

Progestin
 

Discontinuation of HRT for many if not most women included the discontinuation of synthetic progestin, although that is not explored in this study in terms of whether or not or how much synthetic progestin may have been a factor in the first place.

A.A.