1. Department of Paediatric and Adolescent medicine; University Hospital of North Norway; Tromsø Norway
2. Paediatric Research Group, Deptarment of Clinical Medicine, Faculty of Health Sciences; UiT The Arctic University of Norway; Tromsø Norway
3. Institute of Environmental Medicine; Karolinska Institutet; Stockholm Sweden
4. Sachs Children's Hospital, Södersjukhuset; Stockholm Sweden
5. Research Group for Host-Microbe Interactions; Department of Medical Biology, Faculty of Health Sciences; UiT The Arctic University of Norway; Tromsø Norway
6. Department of Microbiology and Infection Control; University Hospital of North Norway; Tromsø Norway
7. Epidemiology of Chronic Diseases Research Group, Department of Community Medicine, Faculty of Health Sciences; UiT The Arctic University of Norway; Tromsø Norway
8. Upper Airways Research Laboratory, Department of Otorhinolaryngology and Head and Neck Surgery; Ghent University; Ghent Belgium
9. Hospital Montpellier France; European Innovation Partnership on Active and Healthy Ageing Reference Site MACVIA-LR Contre les MAladies Chroniques pour un VIeillissement Actif en Languedoc-Roussillon; Paris France
10. VIMA: Ageing and Chronic Diseases, Epidemiological and Public Health Approaches; U1168 INSERM; Paris France
11. Université Versailles St-Quentin-en-Yvelines UVSQ, UMR-S 1168; Versailles France