Text and Data Mining valid from 2018-04-27
Received: 22 January 2018
Accepted: 13 April 2018
First Online: 27 April 2018
: MD, MB, and TB served during the study period as Medical Directors of Emergency Medical Services for the EMS area Amberg (ÄLRD Amberg).
: The study was conducted with the approval of the local ethics committee (University of Regensburg Ethics Committee, Ref. 13–101-0001). Written informed consent was obtained from all study participants.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.