[1] Charles Univ Prague, Fac Med 2, Dept Pediat Neurol, DNA Lab, Prague, Czech Republic
[2] Univ Hosp Motol, Prague, Czech Republic
[3] Charles Univ Prague, Fac Med 2, Dept Pediat Neurol, Prague, Czech Republic
[4] Charles Univ Prague, Fac Med 2, Dept Biol & Med Genet, Prague, Czech Republic