1. Department of Obstetrics and Gynaecology Coffs Harbour Health Campus Coffs Harbour New South Wales Australia
2. Department of Obstetrics and Gynaecology John‐Hunter Hospital New Lambton Heights New South Wales Australia
3. Department of Obstetrics and Gynaecology Westmead Hospital Sydney New South Wales Australia
4. Australian National University Medical School Canberra Australian Capital Territory Australia