An ethanolic extract of black cohosh causes hematological changes but not estrogenic effects in female rodents - Mercado-Feliciano, M; Cora, M C; Witt, K L; Granville, C A; Hejtmancik, M R; Fomby, L; Knostman, K A; Ryan, M J; Newbold, R; Smith, C; Foster, P M; Vallant, M K; Stout, M D (Toxicol Appl Pharmacol, 2012)