1. The University of Sydney Northern Clinical School Women and Babies Research St LeonardsNew South WalesAustralia
2. NSW Biostatistics Training Program NSW Ministry of Health SydneyNew South WalesAustralia
3. Northern Sydney Local Health District Kolling Institute New South WalesAustralia
4. Department of Obstetrics and Gynaecology Royal North Shore Hospital Northern Sydney Local Health District Sydney New South WalesAustralia
5. The Ritchie Centre Hudson Institute of Medical Research MelbourneVictoriaAustralia
6. Consultative Council on Obstetric and Paediatric Mortality and Morbidity VIC Department of Health Melbourne VictoriaAustralia
7. School of Public Health and Community Medicine UNSW Sydney New South Wales Australia