Jaimi H Greenslade1,2, Marianne Wallis3, Amy N B Johnston4,5, Eric Carlström6, Daniel B Wilhelms7,8, Julia Crilly9,10. 1. Emergency and Trauma Centre, Royal Brisbane and Women's Hospital, Herston, Queensland, Australia jaimi.greenslade@health.qld.gov.au. 2. Institute of Health and Biomedical Innovation and School of Public Health and Social Work, Queensland University of Technology, Kelvin Grove, Queensland, Australia. 3. School of Nursing, Midwifery and Paramedicine, University of the Sunshine Coast, Maroochydore, Queensland, Australia. 4. Department of Emergency Medicine, Princess Alexandra Hospital, Brisbane, Queensland, Australia. 5. School of Nursing, Midwifery and Social Work, University of Queensland, Brisbane, Queensland, Australia. 6. Health and Crisis Management and Policy, Sahlgrenska Academy, Goteborgs Universitet, Goteborg, Sweden. 7. Department of Medical and Health Sciences, Linkopings Universitet, Linkoping, Sweden. 8. Department of Emergency Medicine, Universitetssjukhuset i Linkoping, Linkoping, Sweden. 9. Menzies Health Institute Queensland, Griffith University, Gold Coast, Queensland, Australia. 10. Department of Emergency Medicine, Gold Coast Health, Southport, QLD, Australia.