Ludwig, Kristina
Surmann, Bastian http://orcid.org/0000-0003-1655-0907
Räcker, Eva
Greiner, Wolfgang
Funding for this research was provided by:
EuroQol Research Foundation (2009011)
Universität Bielefeld
Article History
Accepted: 27 May 2021
First Online: 10 June 2021
Declarations
:
: Kristina Ludwig and Wolfgang Greiner are members of the EuroQol Group. Bastian Surmann and Eva Räcker have no conflicts of interest directly relevant to the content of this article.
: Informed consent was obtained from all individual participants in the study (in this study from the parents of the participating children and adolescents).
: Ethical approval for this study was obtained from the ethics committee of the medical chamber Nordrhein (No. 2012202).