Received: 31 March 2020
Accepted: 7 May 2020
First Online: 25 May 2020
Ethics approval and consent to participate
: This project was presented to the HREC of Queensland (ref no 1430) who waived the need for ethical approval.
: Not Applicable.
: The authors declare no conflicts of interest, although all are clinically active senior physicians in the involved HEMS services.