1. Department of Public Health & Social Medicine, Faculty of Health Sciences with the Institute of Maritime and Tropical Medicine, Medical University of Gdańsk, 80-210 Gdańsk, Poland
2. Department of Medical Rescue, Faculty of Health Sciences with the Institute of Maritime and Tropical Medicine, Medical University of Gdańsk, 80-210 Gdańsk, Poland
3. Department of Medical Sociology & Social Pathology, Faculty of Health Sciences with the Institute of Maritime and Tropical Medicine, Medical University of Gdańsk, 80-210 Gdańsk, Poland
4. Department of Statistics and Econometrics, Faculty of Management and Economics, Gdańsk University of Technology, 80-233 Gdańsk, Poland
5. Department of Corporate and Public Finance, Wroclaw University of Economics and Business, 53-345 Wrocław, Poland