[1] Med Univ Graz, Dept Neurol, Graz, Austria
[2] Univ Med & Pharm Carol Davila, Dept Neurol Neurosurg & Psychiat, Bucharest, Romania
[3] Med Univ Innsbruck, Dept Neurol, A-6020 Innsbruck, Austria
[4] Univ Med Ctr Maribor, Dept Neurol, Maribor, Slovenia
[5] Univ Med Ctr Ljubljana, Dept Neurol, Ljubljana, Slovenia
[6] Uzsoki Hosp, Dept Neurol, Budapest, Hungary
[7] Univ Pecs, Dept Neurol, Pecs, Hungary
[8] MS Hosp, Kiev, Ukraine
[9] Paracelsus Med Univ, Salzburger Landeskliniken, Dept Neurol, A-5020 Salzburg, Austria
[10] Univ Hosp, Dept Neurol, Martin, TN, Slovakia
[11] Cyprus Inst Neurol & Genet, Neuropathol Lab, Clin A, Cyprus Sch Mol Med, Nicosia, Cyprus
[12] Univ Hosp Bratislava, Ruzinov Hosp, Dept Neurol, Bratislava, Slovakia
[13] Univ Hosp St Naum, Neurol Clin, Sofia, Bulgaria
[14] Natl Med Univ, Dept Neurol, Lvov, Ukraine
[15] Natl Med Univ, Dept Neurol, Vinnytsya, Ukraine
[16] Aretaieio Private Hosp, Nicosia, Cyprus
[17] Univ Med Ctr Ljubljana, Dept Neurol, Ljubljana, Slovenia
[18] Natl Med Univ, Dept Neurol, Kiev, Ukraine
[19] Hradec Kralove Hosp, Dept Neurol, Hradec Kralove, Czech Republic
[20] Univ Hosp Alexandrovska, Neurol Clin, Sofia, Bulgaria
[21] Comenius Univ, Dept Neurol, Bratislava, Slovakia
[22] Med Univ Vienna, Dept Neurol, Vienna, Austria
[23] Mater Dei Hosp Tal Oroqq, Dept Neurol, Msida, Malta
[24] AMS Ukraine, Inst Neurol Psychiat & Narcol, Dept Neuroinfect, Kharkov, Ukraine
[25] Charles Univ Prague, Fac Med 1, Dept Neurol, Prague, Czech Republic