1. Department of Otolaryngology–Head and Neck Surgery, San Antonio Uniformed Services Health Education Consortium (SAUSHEC), JBSA-Ft Sam Houston, Texas, USA
2. Department of Otorhinolaryngology–Head and Neck Surgery, University of Texas Medical School at Houston, Houston, Texas, USA
3. Department of Otolaryngology–Head and Neck Surgery, University of Missouri, Columbia, Missouri, USA