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Authors
Stokstad, Trine http://orcid.org/0000-0003-1364-3227
Sørhaug, Sveinung
Amundsen, Tore
Grønberg, Bjørn H.
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Funding
Funding for this research was provided by:
St. Olavs Hospital Universitetssykehuset i Trondheim
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Article History
Received: 11 October 2018
Accepted: 9 September 2019
First Online: 18 September 2019
Ethics approval and consent to participate
: A passive consent procedure was applied. All patients alive received written information about the study and were given the opportunity to decline participation by completing a form and return it in an enclosed, prepaid envelope. The study and the passive consent procedure were approved by the Regional Committee for Medical and Health Research Ethics in Western Norway (REK Vest (2014/60).
: Not applicable.
: The authors declare that they have no competing interests.
