1. 1 Community Health Centre Ljubljana , Metelkova 9 , Ljubljana , Slovenia
2. 2 Organisation for Economic Co-operation and Development (OECD) , 2, rue André Pascal Paris , France
3. 3 Amsterdam UMC location Vrije Universiteit Amsterdam, Department of Public and Occupational Health , Amsterdam , Netherlands
4. 4 NIVEL Netherlands Institute for Health Services Research , Otterstraat 118 , Utrecht , The Netherlands
5. 5 University of Maribor, Faculty of Medicine, Department of Family Medicine , Taborska 8 , Maribor , Slovenia
6. 6 University of Ljubljana, Faculty of Medicine, Department of Family Medicine , Poljanski nasip 58 , Ljubljana , Slovenia