1. Department of Infectious Diseases Austin Health Melbourne Victoria Australia
2. Department of Perinatal Medicine Mercy Hospital for Women Melbourne Victoria Australia
3. Department of Medicine and Radiology The University of Melbourne Melbourne Victoria Australia
4. Department of Obstetrics and Gynaecology The University of Melbourne Melbourne Victoria Australia
5. Reproductive Epidemiology group Murdoch Children's Research Institute Parkville Victoria Australia
6. Department of Obstetrics and Gynaecology Northern Health Melbourne Victoria Australia