Funding for this research was provided by:
Felles Forskningsutvalg (2018/42795)
Text and Data Mining valid from 2020-04-23
Received: 6 September 2019
Accepted: 20 February 2020
First Online: 23 April 2020
Ethics approval and consent to participate
: The study is approvel by Regional Committee for Ethics in Medical Research, central Norway 25.02.2015, reference 2014/1788/REK midt. E-mail: ExternalRef removed, website: ExternalRef removed Address: Det medisinske fakultet, Medisinsk teknisk forskningssenter, 7489 Trondheim.
: We, the authors, give our consent for publication.
: The authors declare that they have no competing interests.