1. Department of International Health , Care and Public Health Research Institute – CAPHRI, , Maastricht, 6200 MD , Netherlands
2. Maastricht University , Care and Public Health Research Institute – CAPHRI, , Maastricht, 6200 MD , Netherlands
3. Department of Infectious Disease Epidemiology and Dynamics , Centre for Mathematical Modelling of Infectious Diseases, , London, WC1E 7HT , UK
4. London School of Hygiene and Tropical Medicine , Centre for Mathematical Modelling of Infectious Diseases, , London, WC1E 7HT , UK
5. Department of Health Economics , Center for Public Health, , Vienna, 1090 , Austria
6. Medical University of Vienna , Center for Public Health, , Vienna, 1090 , Austria
7. Department of Health Policy Management, Institute of Public Health, Jagiellonian University , Krakow, 31-066 , Poland