1. J. Janssens, PT, MSc, Neurorehabilitation Center Klinik Bethesda Tschugg, Tschugg, Switzerland.
2. K. Malfroid, PT, MSc, Physiotherapie Robellaz, Köniz, Switzerland.
3. T. Nyffeler, MD, Neurology and Neurorehabilitation Center, Department of Internal Medicine, Luzerner Kantonsspital, Luzern, Switzerland.
4. S. Bohlhalter, MD, Neurology and Neurorehabilitation Center, Department of Internal Medicine, Luzerner Kantonsspital.
5. T. Vanbellingen, PT, PhD, Perception and Eye Movement Laboratory, Departments of Neurology and Clinical Research, Inselspital, University Hospital Bern, and Neurology and Neurorehabilitation Center, Department of Internal Medicine, Luzerner Kantonsspital, Luzern, Switzerland.