1. Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
2. Department of Anesthesiology, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio
3. Division of Pulmonary Medicine and Sleep Medicine, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio
4. Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio
5. Division of Biostatistics and Epidemiology, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio
6. Division of Pediatric Otolaryngology—Head and Neck Surgery, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio
7. Department of Otolaryngology—Head and Neck Surgery, University of Cincinnati, Cincinnati, Ohio