1. Department of Otolaryngology; University of Colorado School of Medicine
2. Department of Pediatric Otolaryngology; Children's Hospital Colorado
3. Department of Biostatistics and Informatics; Colorado School of Public Health
4. Colorado Health Outcomes Program; University of Colorado Denver; Aurora Colorado
5. Division of Otolaryngology-Head and Neck Surgery; University of Utah School of Medicine; Salt Lake City Utah U.S.A