1. Department of Clinical Neurophysiology; TYKS-SAPA; Hospital District of Southwest Finland; Turku Finland
2. Department of Clinical Neurophysiology; University of Turku; Turku Finland
3. Sleep Research Unit; University of Turku; Turku Finland
4. Department of Cardiology; Satakunta Central Hospital; Pori Finland
5. Department of Health; Mental Health Unit; National Institute for Health and Welfare; Helsinki Finland
6. Department of Adolescent Psychiatry; Helsinki University Hospital; Helsinki Finland
7. Department of Obstetrics and Gynecology; Turku University Hospital and University of Turku; Turku Finland