1. Department of Clinical Neurophysiology; Maastricht University Medical Center; Maastricht The Netherlands
2. Department of Neurophysiology; University Medical Center Utrecht; Utrecht The Netherlands
3. Neuroscience Global Clinical Research, Bristol-Myers Squibb; Wallingford CT USA
4. Department of Neurology and Center for Neuroscience and Regeneration Research; Yale University School of Medicine; New Haven CT USA
5. Rehabilitation Research Center, Veterans Affairs Connecticut Healthcare System; West Haven CT USA
6. Department of Neurology; Spaarne Hospital; Hoofddorp The Netherlands