1. Gynaecology Division, The Royal Women’s Hospital, Parkville, Victoria, Australia
2. Department of Obstetrics and Gynecology, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
3. Department of Obstetrics and Gynaecology, University of Melbourne, Parkville, Victoria, Australia
4. Department of Microbiology and Infectious Disease, The Royal Women’s Hospital, Parkville, Australia
5. Department of Paediatrics, University of Melbourne, Parkville, Victoria, Australia