[1] Charles Univ Hosp Kralovske Vinohrady, Sch Med 3, Neurol, Prague 10, Czech Republic
[2] 1 Fac Med, Neurol, Prague 2, Czech Republic
[3] Gen Univ Hosp Prague Czech Republ, Prague 2, Czech Republic
[4] Na Homolce Hosp Prague Czech Republ, Radiol, Prague 5, Czech Republic