Affiliation: | a Department of Otolaryngology-Head and Neck Surgery, Johns Hopkins Medical Institutions, Baltimore, MD, USA;b Department of Otorhinolaryngology, Shengjing Hospital, China Medical University, Shenyang, China;c New York Medical College, Valhalla, NY, USA;d Milton J. Dance, Jr. Head and Neck Center, Greater Baltimore Medical Center, Baltimore, MD, USA |