Development and preliminary testing of the new five-level version of EQ-5D (EQ-5D-5L).
Qual Life Res. 2011 Dec;20(10):1727-36. doi: 10.1007/s11136-011-9903-x. Epub 2011 Apr 9.
Qual Life Res. 2011.
PMID: 21479777
Free PMC article.