1. Department of Medical Biology and Genetics, School of Medicine, Dokuz Eylül University, Inciralti, Izmir, Turkey.
2. Department of Neurology, Sleep Disorders Unit, Faculty of Medicine, Dokuz Eylül University, Inciralti, Izmir, Turkey.
3. Sleep Disorders Unit, Cerrahpasa Medical School, University of Istanbul, Istanbul, Turkey.
4. Celal Bayar University School of Medicine, Department of Neurology, Manisa, Turkey.