Marten, Ole https://orcid.org/0000-0002-2576-9110
Greiner, Wolfgang https://orcid.org/0000-0001-9552-6969
Funding for this research was provided by:
EuroQol Research Foundation (2015200)
Universität Bielefeld
Article History
Received: 17 January 2022
Accepted: 11 May 2022
First Online: 20 May 2022
Declarations
:
: This study is part of a larger research study, which was approved by the Ethics Committee of Bielefeld University, Number 2017–207. All analyses are based on anonymised secondary data and did not require additional research ethics approval.
: Not applicable.
: OM and WG are members of the EuroQol Group. There are no other conflicts of interest.