Funding for this research was provided by:
Received: 25 March 2019
Accepted: 3 June 2019
First Online: 13 June 2019
Ethics approval and consent to participate
: This study was approved by the Regional Scientific Committee of The Capital Region of Denmark. Reference number: 25396. All subjects included in the study gave a written consent after receiving written and oral information about the trial.
: Not applicable.
: The authors declare that they have no competing interests.