Funding for this research was provided by:
Received: 11 January 2021
Accepted: 19 March 2021
First Online: 31 March 2021
: This study was approved by the regional ethics board for medical research (Dnr 2019/00092). The need for written consent was waived.
: One of the authors (EL) is partly financed by research collaboration with GE Healthcare. No other potential conflicts of interest are relevant to this study.