1. Pediatric Respiratory Medicine, Department of Pediatrics, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
2. Department of Diagnostic, Interventional, and Pediatric Radiology, Inselspital, University of Bern, Bern, Switzerland
3. University Children’s Hospital Basel, Basel, Switzerland
4. Department of Radiology, Division of Radiological Physics, University of Basel Hospital, Basel, Switzerland
5. Department of Biomedical Engineering, University of Basel, Basel, Switzerland
6. Clinic of Radiology and Nuclear Medicine, University Hospital Basel, University of Basel, Basel, Switzerland
7. Institute of Pediatric Radiology, University Children’s Hospital, Ruhr University Bochum, Bochum, Germany
8. Department of Pediatric Pneumology, University Children’s Hospital of Ruhr University Bochum at St. Josef Hospital, Bochum, Germany; and
9. Institute for Social and Preventive Medicine, University of Bern, Bern, Switzerland