1. School of Public Health, Physiotherapy and Sports Science, University College Dublin, D04 V1W8 Dublin, Ireland
2. Research Unit for General Practice, Department of Public Health, University of Copenhagen, DK-2200 Copenhagen, Denmark
3. Department of Social Medicine, School of Medicine, University of Crete, 71003 Heraklion, Greece
4. Balan Medfam Srl, 400064 Cluj Napoca, Romania
5. Institute of General Practice, Rostock University Medical Center, 18057 Rostock, Germany
6. Department of Family Medicine, “Andrija Stampar” School of Public Health, School of Medicine, University of Zagreb, 10020 Zagreb, Croatia
7. Department of Family Medicine, Medical University of Bialystok, 15-089 Bialystok, Poland
8. Department of Family Medicine & Population Health, University of Antwerp, 2610 Antwerp, Belgium
9. Laboratory of Medical Microbiology, Vaccine & Infectious Disease Institute, University of Antwerp, 2610 Antwerp, Belgium
10. Institut Universitari d’Investigació en Atenció Primària Jordi Gol (IDIAP Jordi Gol), 08007 Barcelona, Spain
11. Centro de investigación Biomédica en Red Enfermedades Infecciosas (CIBERINFEC), 28029 Madrid, Spain
12. Centre for Family and Community Medicine, Faculty of Health Sciences, Medical University of Lodz, 92-213 Lodz, Poland
13. National Center for Disease Control and Public Health, Tbilisi and Arner Science Management LLC, 0190 Tbilisi, Georgia
14. University Clinic of Primary Medical Assistance, State University of Medicine and Pharmacy “Nicolae Testemițanu”, MD-2004 Chişinǎu, Moldova
15. Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Universiteitsweg 100, 3584 CG Utrecht, The Netherlands
16. Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford OX1 4BH, UK