Affiliations: Department of Neurology, Canisius Wilhelmina Hospital
Nijmegen, The Netherlands
Note: [] Corresponding author: Dr. Johan Berghuis, Canisius Wilhelmina
Hospital, Weg Door Jonkerbos 100, 6532 SZ Nijmegen, The Netherlands. Tel.: +312
4365 7657; E-mail: j.berghuis@cwz.nl