Funding for this research was provided by:
EuroQol Research Foundation (EQ Project 2014150)
Article History
First Online: 6 April 2018
Compliance with Ethical Standards
:
: Financial support for this study was provided entirely by a contract with the EuroQol Research Foundation (EQ Project 2014150). The funding agreement ensured the authors’ independence in designing the study, interpreting the data, and writing and publishing the report.
: Anna Selivanova, Erik Buskens, and Paul F.M. Krabbe have no conflicts of interest directly relevant to the content of this article.
: The data are available in Figshare,ExternalRef removed.