1. CAPHRI–Care and Public Health Research Institute Maastricht University Medical Centre+ Maastricht The Netherlands
2. Department of Paediatrics Maastricht University Medical Centre+ Maastricht The Netherlands
3. Department of Paediatrics Zuyderland Medical Centre Heerlen/Sittard‐Geleen The Netherlands
4. Department of General Practice Maastricht University Maastricht The Netherlands