1. Department of Psychology, Sociology of Health and Public Health. School of Public Health, Collegium Medicum, University of Warmia and Mazury, Clinical University Hospital in Olsztyn, 10-900 Olsztyn, Poland
2. Institute of Psychology, Polish Academy of Sciences, Jaracza 1, 00-378 Warsaw, Poland
3. Department of Pathophysiology, School of Medicine, Collegium Medicum, University of Warmia and Mazury, 10-900 Olsztyn, Poland