Funding for this research was provided by:
Helse Sør-Øst RHF
Text and Data Mining valid from 2018-10-19
Received: 15 December 2017
Accepted: 2 October 2018
First Online: 19 October 2018
Ethics approval and consent to participate
: Research ethics approval for this study was waived. The study was approved by the local privacy ombudsman for research at Akershus University Hospital.
: Not applicable.
: KS, LAA, KR are members of the EuroQol group, and KR is member of the EuroQol executive committee. The authors declare that they have no other competing interests.
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