1. Department of Anesthesiology, Intensive Care, Emergency and Pain Medicine, Center for Interdisciplinary Pain Medicine, University Hospital Würzburg, Würzburg, Germany
2. Department of Anesthesiology, Yale School of Medicine, New Haven, CT, USA
3. Department of Neurology, Center for Neuroscience & Regeneration Research, Yale School of Medicine, New Haven, CT, USA
4. Rehabilitation Research Center, VA Connecticut Healthcare System, West Haven, CT, USA