1. Department of Pediatric Otolaryngology‐Head & Neck Surgery Mary Bridge Children's Hospital Tacoma Washington U.S.A.
2. Department of Family Medicine and Population Health Virginia Commonwealth University Richmond Virginia U.S.A.
3. Department of Pediatric Urology Children's Hospital Colorado Aurora Colorado U.S.A.
4. Perioperative Services Children's Hospital of Colorado Aurora Colorado U.S.A.
5. Department of Pediatrics, School of Medicine University of Colorado Anschutz Medical Campus Aurora Colorado U.S.A.
6. Biostatistics and Informatics, School of Public Health University of Colorado Anschutz Medical Campus Aurora Colorado U.S.A.
7. Department of Pediatric Anesthesiology University of Colorado School of Medicine Aurora Colorado U.S.A.
8. Department of Otolaryngology‐Head & Neck Surgery University of Colorado Anschutz Medical Campus Aurora Colorado U.S.A.
9. Department of Pediatric Otolaryngology‐Head & Neck Surgery Children's Hospital Colorado Aurora Colorado U.S.A.