1. Department of Pediatrics, Center for Pediatric Research Leipzig (CPL) University of Leipzig Medical Center Leipzig Germany
2. Hauner Children's Hospital and KUBUS Research Center University of Munich Munich Germany
3. Clinic for Pediatric Pneumology, Allergology, and Neonatology Hannover Medical School Hannover Germany
4. Altonaer Children's Hospital Hamburg Germany
5. University Children's Hospital University of Cologne Cologne Germany
6. Department of Pediatrics University Hospital Bonn Bonn Germany
7. Danish Center of Pediatric Pulmonology and Allergology University Hospital of Aarhus Aarhus Denmark
8. Children's Hospital of the University Medical Center Mainz Germany
9. University Children's Hospital Tübingen Tübingen Germany
10. LIFE Leipzig Research Center for Civilization Diseases University of Leipzig Leipzig Germany
11. Department of Radiology, Pediatric Radiology University of Munich Germany
12. Department of Pathology Academic Teaching Hospital Bielefeld Bielefeld Germany
13. Department of Pathology University of Munich Munich Germany