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Authors
Juelsgaard, Joachim
Rognås, Leif
Knudsen, Lars
Hansen, Troels Martin
Rasmussen, Mads https://orcid.org/0000-0002-0416-6767
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Article History
Received: 9 February 2018
Accepted: 1 August 2018
First Online: 22 August 2018
Ethics approval and consent to participate
: According to Danish law, permission from the ethics committee or from individual patients is not required for register-based studies. The Danish air ambulance database is approved by the Danish Data Protection Agency.
: Not applicable.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
