1. Department of Neuroscience and Sense Organs; Aldo Moro University of Bari; Bari Italy
2. Sobell Department of Motor Neuroscience and Movement Disorders; The National Hospital of Neurology and Neurosurgery; Institute of Neurology; University College London; London UK
3. Department of Neurology; University of Szeged; Szeged Hungary
4. Second Clinic of Neurology; Mures County Emergency Hospital; Targu-Mures Romania
5. Department of Neurology; Medizinische Hochschule Hannover; Hannover Germany
6. Department of Neurology; Klinikum rechts der Isar; Technische Universität München; München Germany
7. Department of Neurology; Christian-Doppler-Klinik; Paracelsus Medical University; Salzburg Austria