1. Division of Pulmonary MedicineCincinnati Children’s Hospital Medical CenterCincinnati Ohio
2. Center for Pulmonary Imaging Research, Cincinnati Children’s Hospital Medical CenterCincinnati Ohio
3. Department of Pediatrics, Section of Pulmonary MedicineBaylor College of MedicineHouston Texas
4. Department of RadiologyUniversity of Cincinnati College of MedicineCincinnati Ohio
5. Department of Radiology and Medical ImagingCincinnati Children’s Hospital Medical CenterCincinnati Ohio
6. Department of PathologyDartmouth‐Hitchcock Medical CenterLebanon New Hampshire
7. Department of Pathology and Laboratory MedicineGeisel School of Medicine at DartmouthHanover New Hampshire
8. Department of PediatricsUniversity of Cincinnati College of MedicineCincinnati Ohio