1. Astrid Lindgren Children’s Hospital Karolinska University Hospital Stockholm Sweden
2. Department of Women’s and Children’s Health Karolinska Institutet Stockholm Sweden
3. Division of Paediatric and Adolescent Medicine Oslo University Hospital Oslo Norway
4. Faculty of Medicine Institute of Clinical Medicine University of Oslo Oslo Norway
5. Department of Women’s and Children’s Health Uppsala University Uppsala Sweden
6. Genetic Unit Centre for Laboratory Medicine Østfold Hospital Trust Kalnes Norway
7. Faculty of Chemistry, Biotechnology and Food Science Norwegian University of Life Sciences Ås Norway
8. Department of Dermatology Oslo University Hospital Oslo Norway
9. Division of Obstetrics and Gynaecology Oslo University Hospital Oslo Norway
10. Department of Medicine Solna Division of Immunology and Allergy Karolinska Institutet and Karolinska University Hospital Stockholm Sweden