1. Paediatric Palliative Care Service, Children's Health Queensland Hospital and Health Service, South Brisbane, Queensland, Australia.
2. Centre for Children's Health Research at Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Queensland, Australia.
3. Queensland Ambulance Service, Office of the Medical Director, Brisbane, Queensland, Australia.
4. School of Psychology and Counseling, University of Technology, Brisbane, Queensland, Australia.
5. Palliative Medicine, University of Technology Sydney, Sydney, New South Wales, Australia.