[1
]
Third Department of Psychiatry, Institute of Psychiatry and Neurology, Warsaw, Poland.
[2
]
Department of Neuropsychology, Faculty of Psychology, University of Warsaw, Warsaw,
Poland.
[3
]
Sleep Disorders Center, Department of Clinical Neurophysiology, Institute of Psychiatry
and Neurology, Warsaw, Poland.
[4
]
Department of Adult Psychiatry, Poznan University of Medical Sciences, Poznan, Poland.