[1] St Elisabeth Hosp Tilburg, Dept Neurol, NL-5022 GC Tilburg, Netherlands
[2] Maxima Med Ctr, Dept Neurol, Eindhoven, Netherlands
[3] St Elizabeth Hosp, Dept Neuroradiol, Tilburg, Netherlands
[4] Erasmus Med Ctr, Dept Neurol, Rotterdam, Netherlands
[5] Univ Utrecht, Med Ctr, Dept Neurol, Utrecht, Netherlands