Funding for this research was provided by:
EuroQol Research Foundation (20180330)
Received: 23 January 2021
Accepted: 16 April 2021
First Online: 29 April 2021
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual participants included in the study.
: The authors have no conflict of interest to declare that are relevant to the content of this article.