1. Department of Otolaryngology/Head and Neck Surgery Louisiana State University Health Sciences Center & Feist‐Weiller Cancer Center Shreveport Louisiana U.S.A.
2. Department of Surgery Otolaryngology Section, Overton Brooks Veterans Affairs Medical Center (OBVAMC) Shreveport Louisiana U.S.A.
3. Department of Otolaryngology Head and Neck Surgery Massachusetts Eye and Ear, Harvard Medical School Boston Massachusetts U.S.A.