1. Division of Neurological Pain Research & Therapy, Department of Neurology, Christian-Albrechts University, Kiel, Germany
2. Pain Center, Voiron Hospital, CHU Grenoble Alpes, Grenoble, France
3. Health, System, Process (P2S) Research Unit 4129, University of Lyon, Claude Bernard Lyon I, Lyon, France
4. Department of Anaesthesia, University of Glasgow, Glasgow, Scotland