Text and Data Mining valid from 2019-08-06
Received: 19 March 2019
Accepted: 19 July 2019
First Online: 6 August 2019
Ethics approval and consent to participate
: The regional ethical review board in Gothenburg approved this study protocol (Dnr: 376–11, TO49–17, T736–17), and the study procedures followed the tenets of the Declaration of Helsinki [CitationRef removed]. Written consent was obtained from the patients, and all of the data from the electronic health records of the emergency medical services and hospital was coded and handled confidentially.
: Not applicable.
: The authors declare that they have no competing interests.