1. Faculty of Medicine and Health Örebro University Örebro Sweden
2. Department of Paediatric Medicine County Hospital Karlstad Karlstad Sweden
3. Faculty of Medicine and Health University Health Care Research Centre, Örebro University Örebro Sweden
4. Department of Cardiothoracic and Vascular Surgery, Faculty of Medicine and Health Örebro University Örebro Sweden
5. Department of Women's and Children's Health Uppsala University Uppsala Sweden
6. Children Hospital and Emergency Region Uppsala, Uppsala Sweden
7. Centre for Clinical Research Region Värmland, Karlstad Sweden
8. School of Education, Health and Social Studies Dalarna University Falun Sweden
9. Department of Health Sciences, Faculty of Medicine Lund University Lund Sweden