1Department of General Practice and Health Services Research, University Medical Hospital Heidelberg, Heidelberg, Germany
2Department of Psychosomatic Medicine, University Medical Hospital Tübingen, Tübingen, Germany
3Department of Anaesthesiology, University Hospital Heidelberg, Heidelberg, Germany
Correspondence to: Dr A Schneider Department of General Practice and Health Services Research, University Medical Hospital Heidelberg, University of Heidelberg, Voßstrasse 2, 69120 Heidelberg, Germany; [email protected]
The trial was supported financially by the German Medical Acupuncture Association (DÄGfA). The funding source had no involvement in design, performance, or analysis of the study.
