1. Cystic Fibrosis Center Copenhagen, Department of Infectious Diseases Copenhagen University Hospital – Rigshospitalet Copenhagen Denmark
2. Cystic Fibrosis Center Aarhus, Department of Pediatrics and Adolescent Medicine Aarhus University Hospital Aarhus Denmark
3. Department of Cardiology, Section for Lung Transplantation Copenhagen University Hospital – Rigshospitalet Copenhagen Denmark
4. Cystic Fibrosis Center Aarhus, Department of Infectious Diseases Aarhus University Hospital Aarhus Denmark
5. Cystic Fibrosis Center Copenhagen, Danish Pediatric Pulmonary Service Copenhagen University Hospital – Rigshospitalet Copenhagen Denmark
6. Department of Clinical Medicine University of Copenhagen Copenhagen Denmark