1. Section of Acute Medicine, Department of Internal Medicine, and Amsterdam Cardiovascular Sciences, VU University Medical Center, Amsterdam, the Netherlands
2. Department of Internal Medicine, Erasmus University Medical Center, Rotterdam, the Netherlands
3. Department of Internal Medicine, University Medical Center Groningen, Groningen, the Netherlands
4. Department of Internal Medicine, Maastricht University Medical Center, Maastricht, the Netherlands
5. Care and Public Health Research Institute School for Public Health and Primary Care, Ageing and Long-Term Care, Maastricht University, Maastricht, the Netherlands
6. Department of Internal Medicine, Onze Lieve Vrouwe Gasthuis, Amsterdam, the Netherlands
7. Department of Internal Medicine, University Medical Center Utrecht, Utrecht, the Netherlands
8. Department of Internal Medicine, Máxima Medical Center, Veldhoven, the Netherlands
9. Department of Internal Medicine, Academic Medical Center, Amsterdam, the Netherlands
10. Department of Internal Medicine, Radboud University Medical Center, Nijmegen, the Netherlands
11. Department of Epidemiology and Biostatistics, VU University Medical Centre, Amsterdam, the Netherlands
12. Department of Internal Medicine, Rijnstate Hospital, Arnhem, the Netherlands
13. Department of Sleep and Cognition, Netherlands Institute for Neuroscience, an institute of the Royal Netherlands Academy of Arts and Sciences, Amsterdam, the Netherlands
14. Department of Psychiatry/GGZ InGeest, VU University Medical Center, Amsterdam, the Netherlands
15. Department of Integrative Neurophysiology, Amsterdam Neuroscience, VU University, Amsterdam, the Netherlands