1. Cincinnati Children's Hospital Medical Center, Division of Pediatric Otolaryngology–Head and Neck Surgery, Cincinnati, Ohio;
2. Sainte-Justine Hospital, Department of Pediatric Otolaryngology–Head and Neck Surgery, University of Montreal, Montreal, Quebec, Canada;
3. Laval University, Department of Otolaryngology–Head and Neck Surgery, Quebec City, Quebec, Canada;
4. Cincinnati Children's Hospital Medical Center, Division of Pediatric Plastic Surgery, Cincinnati, Ohio;
5. University of Cincinnati College of Medicine, Division of Plastic, Reconstructive, Hand, and Burn Surgery, Cincinnati, Ohio;
6. Cincinnati Children's Hospital Medical Center, Division of Pulmonary Medicine, Cincinnati, Ohio;
7. University of Cincinnati College of Medicine, Department of Otolaryngology–Head and Neck Surgery, Cincinnati, Ohio