1. Department of Neurology; Leiden University Medical Centre; Leiden The Netherlands
2. The Netherlands Institute of Neuroscience; Amsterdam The Netherlands
3. Departments of Integrative Neurophysiology and Medical Psychology; Centre for Neurogenomics and Cognitive Research (CNCR); Neuroscience Campus Amsterdam, VU University and Medical Centre; Amsterdam The Netherlands
4. Departments of Neurology and Psychiatry; Leiden University Medical Centre; Leiden The Netherlands
5. Department of Neurology; Elisabeth-Tweesteden Hospital Tilburg; Tilburg The Netherlands
6. Sleep Wake Centre SEIN Heemstede; Heemstede The Netherlands
7. Centre for Sleep and Wake Disorders; Medical Centre Haaglanden; The Hague The Netherlands