1. Center for Pulmonary Imaging Research, Division of Pulmonary Medicine and Department of Radiology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, USA;
2. Department of Pulmonary Medicine, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, USA;
3. Department of Pediatrics, Faculty of Medicine, Prince of Songkla University, Hat-Yai, Songkhla, Thailand;
4. Department of Radiology, Cincinnati Children’s Hospital Medical Center, University of Cincinnati, Cincinnati, OH, USA;
5. Department of Biostatistics and Epidemiology, Cincinnati Children’s Hospital, Cincinnati, OH, USA;
6. Department of Pediatrics, University of Cincinnati, Cincinnati, OH, USA