1. Department of Health Psychology and Research Methodology, Faculty of Medicine, Pavol Jozef Safarik University, Kosice, Slovakia
2. Graduate School Kosice Institute for Society and Health, Faculty of Medicine, Pavol Jozef Safarik University, Kosice, Slovakia
3. Department of Community and Occupational Medicine, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
4. Olomouc University Social Health Institute, Palacky University Olomouc, Olomouc, Czech Republic
5. 2nd Department of Internal Medicine, Faculty of Medicine, Pavol Jozef Safarik University, Kosice, Slovakia
6. Fresenius Medical Care – Dialysis Services Kosice, Kosice, Slovakia
7. Institute of Applied Psychology, Faculty of Social and Economic Sciences, Comenius University in Bratislava, Bratislava, Slovakia