Funding for this research was provided by:
Received: 22 June 2018
Accepted: 25 September 2018
First Online: 3 October 2018
Ethics approval and consent to participate
: The Danish Ethics Committee approved the study (VEK project ID: N20110009), and the trial was registered at ClinicalTrials.gov - Identifier: NCT01336075.
: Not applicable.
: L.Boersma have received grants from Medtronic, Boston Scientific and Abbott as a consultant.
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