1. Faculty of Health University of Technology Sydney SydneyNew South WalesAustralia
2. Department of Maternity and gynaecologyJohn Hunter HospitalHunter New England Local Health District New LambtonNew South WalesAustralia
3. NSW Health Pathology John Hunter HospitalHunter New England Local Health District New LambtonNew South WalesAustralia
4. The University of Newcastle Faculty of Health and Medicine CallaghanNew South WalesAustralia
5. Clinical Research Design IT and Statistical Support Unit (CReDITSS) The University of NewcastleHunter Medical Research Institute New LambtonNew South WalesAustralia
6. Hunter New England Local Health District, Nurses and Midwives Research Centre The University of Newcastle Callaghan New South Wales Australia