1 Department of Health Economics and Social Security, Institute of Public Health, Faculty of Health Sciences, Jagiellonian University Collegium Medicum , Krakow , Poland.
2 Department of Health Services Research, CAPHRI School for Public Health and Primary Care, Faculty of Health, Medicine and Life Sciences, Maastricht University Medical Center, Maastricht University , Maastricht , Netherlands.
3 Department of Health Services Research, CAPHRI School for Public Health and Primary Care, Faculty of Health, Medicine and Life Sciences, Maastricht University Medical Center, Maastricht University , Maastricht , Netherlands ; Top Institute for Evidence-Based Education Research (TIER), Maastricht University , Maastricht , Netherlands.