Janssen, M. F.
Szende, A.
Cabases, J.
Ramos-Goñi, J. M.
Vilagut, G.
König, H. H.
Funding for this research was provided by:
EuroQol Research Foundation (201108)
Article History
Received: 13 December 2016
Accepted: 8 January 2018
First Online: 14 February 2018