1. Department of Otolaryngology-Head and Neck Surgery; David Geffen School of Medicine at University of California; Los Angeles (UCLA); Los Angeles CA
2. Orange County Sinus Institute; Southern California Permanente Medical Group (SCPMG); Irvine CA
3. Department of Otolaryngology; University of Colorado; Aurora CO
4. Department of Otolaryngology-Head and Neck Surgery; Oregon Health and Science University; Portland OR
5. New York University School of Medicine; New York NY
6. Department of Otolaryngology; North Shore University Hospital; Manhasset NY
7. Division of Otolaryngology; University of Connecticut School of Medicine; Hartford CT
8. Connecticut Sinus Institute; Hartford CT
9. Department of Otolaryngology-Head and Neck Surgery; University of Texas Southwestern Medical Center; Dallas TX