[1] Erasmus MC, Dept Neurol, NL-3015 CE Rotterdam, Netherlands
[2] Erasmus MC, Dept Immunol, NL-3015 CE Rotterdam, Netherlands
[3] Erasmus MC, Dept Paediat, NL-3015 CE Rotterdam, Netherlands
[4] Radboud Univ Nijmegen, Med Ctr, Dept Paediat, Nijmegen, Netherlands