[1] Univ Med Ctr Rotterdam, Erasmus MC, Dept Neurol, Rotterdam, Netherlands
[2] Albert Schweitzer Hosp, Dept Neurol, Dordrecht, Netherlands
[3] Univ Amsterdam, Amsterdam UMC, Dept Neurol, Amsterdam, Netherlands
[4] Haga Teaching Hosp, Dept Neurol, The Hague, Netherlands
[5] Univ Med Ctr, Brain Ctr Rudolf Magnus, Dept Neurol, Utrecht, Netherlands
[6] Univ Med Ctr Rotterdam, Erasmus MC, Dept Publ Hlth, Rotterdam, Netherlands
[7] Univ Med Ctr Rotterdam, Erasmus MC, Dept Neurol & Immunol, Rotterdam, Netherlands