1. Clinical Microbiology and Infectious Disease, Royal Women's Hospital, Parkville, VIC.
2. Victorian Infectious Diseases Service, Royal Melbourne Hospital, Parkville, VIC.
3. Obstetrics and Gynaecology, Sunshine Hospital and Royal Children's Hospital, Parkville, VIC.
4. Epidemiology and Social Research Program, MacFarlane Burnet Institute for Medical Research and Public Health, Prahran, VIC.