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Article History

Received: 18 January 2021

Accepted: 22 March 2021

First Online: 31 March 2021

Declarations

:

: Scientific ethical approval for this study was waived by the Regional Scientific Ethics Committee of Southern Denmark as the committee considered the study a quality assurance study (project-ID: S − 20182000 − 130). According to the Danish legislative requirements, the study was subsequently approved as a quality assurance study by the Prehospital Director of the Region of Southern Denmark (project-ID: 19/14433) and approved by the Danish Data Protection Agency (project-ID: 20/24845). Informed consent was obtained from the participants when they were included in the study.

: All authors have read and approved the final manuscript and consent to publication. No person-identifiable information about the participating patients are provided in this manuscript. Thus, Patients’ consent for publication is “Not Applicable”.

: The regional ambulance company, AmbulanceSyd (represented in this publication by authors DW, SH), sponsored the study and has a potential interest in the study. The privately owned ambulance company, Response, and their owner, Falck, (represented by authors MKS, LBN, C-HR) all had a commercial interest in the concept. However, apart from contributing to the design of the study, the ambulance companies had no role in the analyses or interpretation of data or in the decision to publish the results. Authors GN, CBL, PIP, HMC, GJ, ILT. ATL, and SM had no competing interests in the study.