Black cohosh, a menopausal remedy, does not have estrogenic activity and does not promote breast cancer cell growth - Lupu, R; Mehmi, I; Atlas, E; Tsai, M S; Pisha, E; Oketch-Rabah, H A; Nuntanakorn, P; Kennelly, E J; Kronenberg, F (Int J Oncol, 2003)