1. Department of Neurology, University Medical Center & Chair of Neurology, Medical Faculty University of Ljubljana, Ljubljana, Slovenia
2. Department of Clinical Neurosciences, University of Medicine and Pharmacy “Carol Davila”, Bucharest, Romania
3. Department of Neurology Medical School University of Pecs, Pecs, Hungary
4. Department of Neurology, Multiprofile University Hospital for Active Treatment in Neurology and Psychiatry “St. Naum”, Sofia, Bulgaria
5. Movement Disorders Center, Department of Neurology, School of Medicine, University Hospital Center Zagreb, Zagreb, Croatia
6. Department of Neurology. Medical Faculty, P. J. Safarik University and Department of Neurology University Hospital of L. Pasteur, Kosice, Slovakia