1. University of Ljubljana, Faculty of Medicine, Department of Family Medicine , Poljanski nasip 58, 1000 Ljubljana , Slovenia
2. Department of Urology and General Medicine, Medical Faculty, Medical University of Plovdiv , Plovdiv Bulgaria
3. Medical Center BROD , Plovdiv , Bulgaria
4. Croatian Health Insurance Fund , Rijeka , Croatia
5. Family Medicine Department, Iuliu Hatieganu University of Medicine and Pharmacy , Cluj-Napoca , Romania
6. Laboratory of Primary Health Care, General Practice and Health Services Research, Aristotle University of Thessaloniki , Thessaloniki , Greece
7. College of Medicine & Health, University of Exeter , Exeter , UK
8. Institute of Primary Health Care Bern (BIHAM), University of Bern , Bern Switzerland