1. School of Women's & Children's Health, Royal Hospital for Women and IVF Australia; Division of Obstetrics & Gynaecology; Barker Street Randwick Sydney Australia NSW 2031
2. University of New South Wales; School of public health and community medicine; 2/137A Parramatta Road Concord NSW Australia 2137
3. Royal Hospital for Women; Sydney Menopause Centre & Natural Therapies Unit; Locked Bag 2000 Randwick NSW Australia 2031
4. University of Auckland; Department of Obstetrics & Gynaecology; PO Box 92019 Auckland New Zealand 1003
5. Monash University; The Jean Hailes Clinical Research Unit, School of Public Health and Preventive Medicine; Locked bag 29, Monash Medical Centre, Clayton Road Clayton Road Clayton Victoria Australia 3168