Division of Neurology, Imperial College London, UK

Albany Medical Center, Albany, NY, USA

University Medical Center Schleswig-Holstein (UKSH), Campus Kiel, Germany

Dept. of Neurology, University Medical Centre, Mainz, Germany

Pain Relief Research Unit, Pain Relief Clinic, Rambam Health Care Campus, Haifa Israel

James Cook University Hospital, Middlesbrough, UK

Danish Pain Research Centre, Department of Clinical Medicine, Aarhus University, Denmark

Benedictus Krankenhaus Tutzing & Academic Teaching Hospital Technische Universität München, Germany

Department of Internal Medicine, University of Texas at Austin, USA

University Leuven, Belgium

Cochin University Hospital, France

Faculty of Medicine, Department of Surgery & Cancer, Imperial College London, UK

Department of Palliative Medicine, RWTH Aachen University, Germany

Dept. of Experimental Pain Research, Heidelberg University, Germany

Sheffield Teaching Hospitals & University of Sheffield, UK

Medical Faculty Mannheim, Heidelberg University, Germany

Faculty of Medicine, Department of Surgery & Cancer, Imperial College London, UK

UCL Great Ormond St Institute of Child Health, UK

Nuffield Department of Women's & Reproductive Health, University of Oxford, UK

Fo Guang University, Taiwan

Balgrist University Hospital, University of Zurich, Switzerland