1. Department of Neurology, HagaHospital, The Hague, The Netherlands
2. Department of Neurology, Ashford and St. Peter’s Hospital, Chertsey, United Kingdom
3. Department of Neurology, St. George’s Hospital, Tooting, United Kingdom
4. Department of Ear, Nose and Throat Surgery, HagaHospital, The Hague, The Netherlands
5. Department of Neuropsychology, HagaHospital, The Hague, The Netherlands