Funding for this research was provided by:
The Liaison Committee for education, research and innovation in Central Norway
Text and Data Mining valid from 2018-11-15
Received: 21 June 2018
Accepted: 6 November 2018
First Online: 15 November 2018
Ethics approval and consent to participate
: We confirm that all patients or a proxy consented for participation based on the concept of written informed consent. The Regional Committee for Medical and Health Research Ethics of Mid-Norway approved the study (REK Central 2015/474).
: Not applicable.
: The authors declare that they have no competing interests.
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