Funding for this research was provided by:
Dam Foundation (2019/FO249324)
Received: 10 March 2020
Accepted: 4 May 2020
First Online: 25 May 2020
Ethics approval and consent to participate
: The study was approved by the Regional Committee for Medical and Health Research Ethics (REK) South–East, Norway (approval number 2016/2271), and is registered on ExternalRef removed (ExternalRef removed). The study was conducted in accordance with the Helsinki Declaration for medical research, and all participants gave their informed, written consent prior to participation.
: All authors have read and approved the final manuscript for publication.
: SOF has received a consulting fee from BioMarin. The authors have completed the ICMJE form and have declared no conflict of interest.