1. Health Economics and Pharmacoeconomics, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia;
2. Department of Health Services Research, CAPHRI, Maastricht University Medical Centre, Faculty of Health, Medicine and Life Sciences, Maastricht University, Maastricht, The Netherlands;
3. Department of Public Health, I—CHER Interuniversity Centre for Health Economics Research, Ghent University, Ghent, Belgium;
4. Section of International Public Health (S-IPH), Faculty of Health Sciences, University of Bielefeld, Bielefeld, Germany;
5. Top Institute Evidence-Based Education Research (TIER); Maastricht University, Maastricht, The Netherlands