Wouda, Matthijs F.
Lundgaard, Eivind
Becker, Frank
Strøm, Vegard
Article History
Received: 18 December 2017
Revised: 5 April 2018
Accepted: 16 April 2018
First Online: 23 May 2018
Compliance with ethical standards
:
: We certify that all applicable institutional and governmental regulations concerning the ethical use of human volunteers were followed during the course of this research.The present study has been registered in ClinicalTrials.gov (Identifier: NCT01903226, ExternalRef removed) and was approved by the Regional Medical Ethical Research Committee. All participants signed an informed consent after being informed about the purpose, procedures, and potential risks of the study by giving written and oral information.
: The authors declare that they have no conflict of interest.