1. Australian Centre for Public and Population Health Research Faculty of Health University of Technology Sydney Sydney New South Wales Australia
2. School of Public Health and Preventive Medicine Monash University Melbourne Victoria Australia
3. Victorian Assisted Reproductive Treatment Authority Melbourne Victoria Australia
4. Department of Obstetrics and Gynaecology Monash Medical Centre Monash University Melbourne Victoria Australia
5. Faculty of Health and Medicine The University of Newcastle Callaghan New South Wales Australia