Funding for this research was provided by:
Department of Health (0200055)
Received: 17 March 2018
Accepted: 22 June 2018
First Online: 4 July 2018
Ethics approval and consent to participate
: The SAFER 1 cluster randomised trial was approved by the Multi-Centre Research Ethics Committee for Wales (08/MRE09/12). Paramedics gave informed consent to participate. We registered the trial atExternalRef removed.
: Not applicable.
: The authors declare that they have no competing interests.
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