[1] Atrium Med Ctr, Dept Neurol, Heerlen, Netherlands
[2] Radboud Univ Nijmegen, Nijmegen Ctr Evidence Based Practice, Dept Neurol, NL-6500 HB Nijmegen, Netherlands
[3] Univ Groningen, Univ Med Ctr Groningen, Dept Gen Practice, Groningen, Netherlands
[4] Radboud Univ Nijmegen, Med Ctr, Ctr Family Med Geriatr Care & Publ, Dept Primary & Community Care, NL-6500 HB Nijmegen, Netherlands
[5] Radboud Univ Nijmegen, Med Ctr, Donders Inst Brain Cognit & Behav, Dept Neurol, NL-6500 HB Nijmegen, Netherlands