[1] Academic Medical Center Amsterdam,Department of Neurology
[2] Academic Medical Center Amsterdam,Department of Clinical Epidemiology and Biostatistics
[3] Academic Medical Center Amsterdam,Department of Neurosurgery
[4] Radboud University Nijmegen Medical Center,Department of Neurology and Geriatrics
[5] Medical Spectrum Twente,Department of Neurology
[6] Saint Elisabeth Hospital,Department of Neurosurgery
[7] University Medical Center Groningen,Department of Neurology