Funding for this research was provided by:
Roy Magnus Løkens Foundation for Medical Imaging
TRS, National Resource Centre for Rare Disorders, Sunnaas Rehabilitation Hospital
Received: 4 December 2019
Accepted: 26 November 2020
First Online: 1 December 2020
Ethics approval and consent to participate
: The study was approved by the Regional Committees for Medical Research Ethics, South East, Norway (#2013/2109). Written informed consent was received from all the participants.
: Not applicable.
: The authors declare that they have no competing interest.