Burton AE, Dean SE, Demeyin (Nuabor) W, Reeves J. Questionnaire measures of self-directed ageing stereotype in older adults: a systematic review of measurement properties. Eur J Ageing. 2020 Jul 12. doi: 10.1007/s10433-020-00574-7
Clarkson TB, Anthony MS, Klein KP. Phytoestrogens: can hormone replacement be something you eat? Women's health digest. 1996;1(4):253-5.