Received: 3 May 2023
Accepted: 10 August 2023
First Online: 22 August 2023
: The study was defined as a retrospective service evaluation of routinely collected data and did not require ethics review [CitationRef removed].
: Not applicable.
: RM is a Clinical Research Fellow at ScotSTAR. CM, AJC and ARC are Consultants in Pre-Hospital and Retrieval Medicine at EMRS. The remaining authors declare no competing interests.