1. Division of Neurological Pain Research and Therapy Department of Neurology, University Hospital Schleswig‐Holstein Campus Kiel Kiel Germany
2. Department of Rheumatology University Hospital La Paz Autonomous University of Madrid Madrid Spain
3. Medical Affairs Europe & Australia Grünenthal GmbH Aachen Germany
4. Global Biometrics in Grünenthal Innovation Grünenthal GmbH AachenGermany