1. Department of Otolaryngology‐Head and Neck Surgery University of California Los Angeles California USA
2. Departments of Medicine and Pediatrics National Jewish Health Denver Colorado USA
3. Department of Radiology National Jewish Health Denver Colorado USA
4. Division of Biostatistics and Bioinformatics National Jewish Health Denver Colorado USA
5. David Geffen School of Medicine University of California Los Angeles California USA
6. Department of Clinical Research Services National Jewish Health Denver Colorado USA
7. Division of Pulmonary Sciences and Critical Care Medicine Department of Medicine University of Colorado School of Medicine Aurora Colorado USA
8. Department of Cell and Developmental Biology University of Colorado School of Medicine Aurora Colorado USA
9. Division of Pediatric Pulmonology University of California Los Angeles California USA