1. University of California, San Francisco School of Medicine, San Francisco, San Francisco
2. Department of Otolaryngology–Head and Neck Surgery, University of California, San Francisco, San Francisco
3. Division of Pediatric Otolaryngology, Department of Otolaryngology–Head and Neck Surgery, University of California, San Francisco, San Francisco
4. Division of Pediatric Anesthesiology, Department of Anesthesiology, University of California, San Francisco, San Francisco
5. Division of Pediatric Infectious Diseases and Global Health, Department of Pediatrics, University of California, San Francisco, San Francisco