1 The University of Sydney, Sydney, NSW, Australia. Kristine.Macartney@health.nsw.gov.
2 National Centre for Immunisation Research and Surveillance, Kids Research Institute, The Sydney Children's Hospitals Network, Cnr Hawkesbury Road and Hainsworth Street, Westmead, 2145, NSW, Australia. Kristine.Macartney@health.nsw.gov.
3 The University of Sydney, Sydney, NSW, Australia.
4 National Centre for Immunisation Research and Surveillance, Kids Research Institute, The Sydney Children's Hospitals Network, Cnr Hawkesbury Road and Hainsworth Street, Westmead, 2145, NSW, Australia.
5 National HPV Vaccination Program Register, Victorian Cytology Service, Level 6, 176 Wellington Parade, East Melbourne, VIC, 3002, Australia.
6 The University of Melbourne, Melbourne, VIC, Australia.