Measuring health-related quality of life with the SF-8. Normal sample of the German population

Ellert U, Lampert T, Ravens-Sieberer U.
Bundesgesundheitsblatt Gesundheitsforschung Gesundheitsschutz. 2005 Dec;48(12):1330-7

https://www.ncbi.nlm.nih.gov/pubmed/16270186