Lourens, Andrit http://orcid.org/0000-0003-0180-6017
Hodkinson, Peter http://orcid.org/0000-0002-0376-7982
Parker, Romy http://orcid.org/0000-0003-4823-2487
Article History
Received: 25 July 2019
Accepted: 9 March 2020
First Online: 28 April 2020
Ethics approval and consent to participate
: Approval was obtained from the Human Research Ethics Committee at the University of Cape Town (Reference: 220/2017) and three ambulance services. Informed consent was obtained through a tick box and participation was voluntary.
: Not applicable.
: The authors declare that they have no competing interest.