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, Klein KP. Phytoestrogens: can hormone replacement be something you eat? Women's health digest. 1996;1(4):253-5.