Received: 6 December 2020
Accepted: 24 May 2021
First Online: 5 June 2021
: The study was approved by the Scientific Ethical Committee of the Capital Region of Denmark (J. No. H-2-2014-105) and the Danish Data Protection Agency (J. No.:2012–58-00004). The study was conducted in accordance with the ethical standards of the national ethical committee and with the 1964 Declaration of Helsinki. Prior to inclusion informed consent was obtained from all participants after written and oral information.
: The authors declare that they have no competing interests.