Funding for this research was provided by:
Marathon Oil (2009)
Folke Hermansen Foundation (2012)
Inge Steensland Foundation, Stavanger (2011)
Received: 20 June 2019
Accepted: 18 October 2019
First Online: 8 November 2019
Ethics approval and consent to participate
: The randomized trial was approved by the Regional Ethics Committee (Accession number 2015/1445), NSD (Norwegian Centre for Research data, #20984), and The Norwegian Biobank registry (#2239). An informed consent form was signed by each patient. The trial was retrospectively registered at ExternalRef removed (NCT03886389). The reason for delayed registration was that we were not aware of the obligation to register prospectively at the time.
: Not applicable.
: The authors declare that they have no competing interests.