1. Department of Public Health, Institute of Tropical Medicine Antwerp, Antwerp, Belgium
2. Department of Sociology, University of Antwerp, Antwerp, Belgium
3. Community Health Center Ljubljana, Slovenia
4. Department of Family Medicine, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
5. National Institute of Public Health, Ljubljana, Cambodia
6. Julius Global Health, Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
7. Division of Epidemiology and Biostatistics, School of Public Health, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
8. Department of Family Medicine, Faculty of Medicine, University of Maribor, Maribor, Slovenia