1 Office of Pain Policy and Planning, National Institute of Neurological Disorders and Stroke (NINDS), National Institutes of Health (NIH), Bethesda, MD 20892, United States.
2 BlomsFunkeResearch GmbH, Würselen, Germany.
3 Research & Development, Pharmaceuticals, Bayer AG, Berlin, Germany.
4 Division of Translational Research, National Institute of Neurological Disorders and Stroke (NINDS), National Institutes of Health (NIH), Bethesda, MD 20892, United States.
5 Division of Clinical Research, National Institute of Neurological Disorders and Stroke (NINDS), National Institutes of Health (NIH), Bethesda, MD 20892, United States.
6 Global Market Access, Grunenthal GmbH, Aachen, Germany.
7 Division of Neuroscience, National Institute of Neurological Disorders and Stroke (NINDS), National Institutes of Health (NIH), Bethesda, MD 20892, United States.
8 Department of Anesthesiology, Intensive Care and Pain Medicine, University Hospital Muenster, Muenster, Germany.
9 Department of Neurophysiology, Mannheim Center for Translational Neuroscience (MCTN), Heidelberg University, Mannheim, Germany.
10 Department of Surgery & Cancer, Imperial College London, London, United Kingdom.
11 Division of Neurological Pain Research and Therapy, Department of Neurology, University Hospital of Schleswig-Holstein, Campus Kiel, Kiel, Germany.