Affiliation: | 1. Section of Nasal and Sinus Disorders, Head and Neck Institute, Cleveland Clinic Foundation, Cleveland, Ohio, U.S.A.;2. Department of Otolaryngology–Head and Neck Surgery, University of Cincinnati Academic Health Center, Cincinnati, Ohio, U.S.A.;3. Department of Otolaryngology–Head and Neck Surgery, Oregon Health and Science University, Portland, Oregon, U.S.A. |