1. Department of General Practice, Julius Center University Medical Center Utrecht, Utrecht University Utrecht The Netherlands
2. Nivel (Netherlands Institute for Health Services Research), Department of general practice care Utrecht The Netherlands
3. First Faculty of Medicine Institute of General Practice, Charles University Prague Czech Republic
4. Division of Family Medicine and Primary Care, Department of Neurobiology, Care Sciences and Society (NVS) Karolinska Institutet Stockholm Sweden
5. Academic Primary Healthcare Centre, Department of Primary Health Care, Stockholm Region Stockholm Sweden
6. Clinic of Social and Family Medicine, School of Medicine University of Crete Heraklion Greece
7. Research Unit of General Practice, Department of Public Health University of Southern Denmark Odense Denmark
8. Department of General Practice & Elderly Care Medicine Amsterdam Public Health Research Institute, VU University Medical Center Amsterdam The Netherlands