1. Department of Health Sciences, University of Helsinki , Helsinki, Finland
2. Department of Knowledge Brokers, THL Finnish Institute for Health and Welfare, Helsinki , Finland
3. Population Health Research Institute, St George's, University of London , London, UK
4. Population Health Sciences Institute, Newcastle University , Newcastle upon Tyne, UK
5. Paediatric Department, Hospital Lillebælt , Kolding, Denmark
6. Faculty of Life and Health Sciences, Ulster University , Belfast, UK
7. Academic Primary Health Care Centre , Region Stockholm, Stockholm, Sweden
8. Department of Molecular Medicine and Surgery, Karolinska Institute , Stockholm, Sweden