Evidence for selective estrogen receptor modulator activity in a black cohosh (Cimifuga racemosa) extract: comparison with estradiol-17β. - Seidlova-Wuttke,D.; Hesse,O.; Jarry,H.; Christoffel,V.; Spengler,B.; Becker,T.; Wuttke,W. (Eur J Endocrinol, 2003)