Williams RE, Kalilani L, DiBenedetti DB, Zhou X, Granger AL, Fehnel SE, Levine KB, Jordan J, Clark RV. Frequency and severity of vasomotor symptoms among peri- and postmenopausal women in the United States. Climacteric. 2008 Jan 1;11(1):32-43.
Clarkson TB, Anthony MS. Effects of SERMs, tibolone, and soy isoflavones on cardiovascular risk factors and coronary artery atherosclerosis of surgically post-menopausal monkeys. J Menopausal Med. 2001;10(1):19-23.