1. Life change: a guide to menopause & its effects & treatment Chapter 1;Evants,1982
2. Research on the menopause in the 1990s,1996
3. The emergence of the menopause in India;Sengupta;Climacteric,2003
4. Timing of menopause and patterns of menstrual bleeding;Weinstein;American journal of epidemiology,2003
5. The timing of the age at which natural menopause occurs;Gold;Obstetrics and Gynecology Clinics,2011