Funding for this research was provided by:
Norges Forskningsråd (227002/H20)
Received: 12 March 2018
Accepted: 4 October 2018
First Online: 16 October 2018
Ethics approval and consent to participate
: The project was exempted from the Norwegian Regional Committees for Medical and Health Research Ethics who concluded that the SEED-trial did not fall under the Health Research Act. It was approved by the Norwegian Social Science Data Services (project #38271), and is registered in the international trial register ClinicalTrials.gov (NCT02375074). The project adheres to the ethical principles of the Helsinki declaration. All participants received information about their rights to confidentiality and to withdraw from the project at any time without consequences to services or treatment, and gave written informed consent before being included in the study.
: Not applicable.
: The authors declare that they have no competing interests.
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