1. Department of Neurology, UMC Utrecht Brain Center, University Medical Center Utrecht, Utrecht, The Netherlands
2. Department of Neurology, Tergooi Hospital, Hilversum, The Netherlands
3. Metabolic Diagnostics, Division Biomedical Genetics, University Medical Center Utrecht, Utrecht, The Netherlands
4. Biostatistics & Research Support, Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, The Netherlands