1. Division of Pediatrics Queen Silvia Children's Hospital, Sahlgrenska University Hospital Gothenburg Sweden
2. Division of Pediatrics Sahlgrenska Academy, Institute of Clinical Sciences, University of Gothenburg Gothenburg Sweden
3. Center of Registers Västra Götaland Gothenburg Sweden
4. Health Metrics Unit, the Sahlgrenska Academy University of Gothenburg Gothenburg Sweden
5. Department of Biomedical and Clinical Sciences Linköping University Linköping Sweden
6. Department of Pediatrics Ryhov County Hospital Jönköping Sweden
7. Department of Pediatrics University Hospital Örebro Örebro Sweden
8. School of Medical Sciences Örebro University Örebro Sweden