1. Department of Otolaryngology–Head and Neck Surgery, Walter Reed National Military Medical Center, Bethesda, Maryland
2. Department of Surgery, Uniformed Services University of the Health Sciences, Bethesda, Maryland
3. Department of Otolaryngology–Head and Neck Surgery, McGill University, Centre Intégré de Santé et des Services Sociaux de l’Outaouais, Gatineau, Quebec, Canada
4. Department of Otolaryngology–Head and Neck Surgery, Columbia University Medical Center, New York Presbyterian Hospital, New York, New York