1. Department of Neurology, Huntington-Centre NRW, St. Josef Hospital, Ruhr-University of Bochum, Bochum, Germany
2. Department of Neuropsychiatry, Huntington Centre South, kbo-Isar-Amper-Klinikum, Taufkirchen (Vils), Germany
3. Institute of Neuroradiology, St. Josef Hospital, Ruhr-University of Bochum, Bochum, Germany
4. Department of Neurology, Knappschaftskrankenhaus, Ruhr-University of Bochum, Bochum, Germany