title: Reply.
authors: Department of Neurology, Jeroen Bosch Hospital, 's-Hertogenbosch, The Netherlands.|Department of Neurology and Clinical Neurophysiology, Donders Centre for Neuroscience, Radboud University Medical Center, Nijmegen, The Netherlands.
authors: Jeroen J J
authors: JJ
authors: van Eijk
authors: Department of Rehabilitation, Donders Centre for Neuroscience, Radboud University Medical Center, Nijmegen, The Netherlands.
authors: Jan T
authors: JT
authors: Groothuis
authors: Department of Neurology and Clinical Neurophysiology, Donders Centre for Neuroscience, Radboud University Medical Center, Nijmegen, The Netherlands.
authors: Nens
authors: N
authors: van Alfen