1. Queensland Paediatric Cardiac Service, Lady Cilento Children’s Hospital, Brisbane, QLD, Australia
2. University of Queensland, Brisbane, QLD, Australia
3. Heart Centre for Children, The Children’s Hospital at Westmead, Sydney, NSW, Australia
4. Children’s Cardiac Centre, Princess Margaret Hospital for Children, Perth, WA, Australia
5. Department of Cardiology, Women’s and Children’s Hospital, Adelaide, SA, Australia
6. Green Lane Paediatric and Congenital Cardiac Service, Starship Children’s Hospital, Auckland, New Zealand
7. Department of Cardiology, Royal Prince Alfred Hospital, Sydney, NSW, Australia
8. Department of Cardiac Surgery, Royal Children Hospital, Melbourne, VIC, Australia