1 Department of Otolaryngology-Head and Neck Surgery, Clinical Outcomes Research Office, Washington University School of Medicine in St. Louis, St. Louis, Missouri, USA.
2 Department of Anesthesiology, Division of Pain Management, Washington University School of Medicine in St. Louis, St. Louis, Missouri, USA.
3 Department of Otolaryngology-Head and Neck Surgery, Division of Rhinology, Washington University School of Medicine in St. Louis, St. Louis, Missouri, USA.