[1] Vilnius Univ, Ctr Neurol, LT-08661 Vilnius, Lithuania
[2] Harvard Med Sch, J Philip Kistler Stroke Res Ctr, Massachusetts Gen Hosp, Dept Neurol, Boston, MA 02114 USA
[3] Geneva Univ Hosp, Dept Clin Neurosci, Div Neurol, CH-1205 Geneva, Switzerland
[4] Lithuanian Univ Hlth Sci, Med Acad, Inst Cardiol, LT-50161 Kaunas, Lithuania
[5] Vilnius Univ, Inst Clin Med, Clin Neurol & Neurosurg, LT-08661 Vilnius, Lithuania
[6] Nicolaus Copernicus Univ Torun, Coll Med Bydgoszcz, Dept Neurol, PL-85067 Bydgoszcz, Poland
[7] Riga Stradins Univ, Dept Neurol & Neurosurg, LV-1002 Riga, Latvia
[8] Pauls Stradins Clin Univ Hosp, Dept Neurol, LV-1002 Riga, Latvia
[9] Vilnius Univ, Ctr Anaesthesiol Intens Therapy & Pain Management, LT-08661 Vilnius, Lithuania