1. EPI-Centre, Department of Public Health and Primary Care, KU Leuven , 7 Kapucijnenvoer , Leuven, 3000, Belgium
2. Academic Centre for General Practice, Department of Public Health and Primary Care, KU Leuven , 7 Kapucijnenvoer, Leuven, 3000 , Belgium
3. Faculty of Medicine, KU Leuven , 49 Herestraat, Leuven, 3000 , Belgium
4. EPI-Centre, Department of Public Health and Primary Care, KU Leuven , 7 Kapucijnenvoer, Leuven, 3000 , Belgium
5. Department of Epidemiology, CAPHRI Care and Public Health Research Institute, Maastricht University , 1 Peter Debyeplein , Maastricht, 6229 HA, The Netherlands
6. Department of Development and Regeneration, KU Leuven , 49 Herestraat, Leuven, 3000 , Belgium
7. NIHR Community Healthcare MedTech and IVD cooperative, Nuffield Department of Primary Care Health Sciences, University of Oxford , Woodstock Road , Oxford, OX2 6GG, UK