1. USC Caruso Department of Otolaryngology‐Head and Neck Surgery Los Angeles California USA
2. Kaiser Permanente Orange County Irvine California USA
3. Division of Pediatric Otolaryngology Rady Children's Hospital San Diego California USA
4. Department of Otolaryngology—Head and Neck Surgery University of California San Diego La Jolla California USA
5. Division of Pediatric Otolaryngology Children's Hospital Los Angeles Los Angeles California USA