1. Division of Pulmonary Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
2. Division of Pediatric Otolaryngology - Head and Neck Surgery, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
3. School of Management, Simmons College, Boston, Massachusetts
4. Department of Otolaryngology - Head and Neck Surgery, University of Cincinnati College of Medicine, Cincinnati, Ohio
5. Department of Anesthesiology, Division of Pediatric Anesthesia and Critical Care Medicine, Johns Hopkins School of Medicine, Baltimore, Maryland
6. Department of Otolaryngology - Head and Neck Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
7. Department of Anesthesiology and Critical Care Medicine, Johns Hopkins School of Medicine, Baltimore, Maryland
8. Department of Biostatistics, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland