1 Department of Otolaryngology-, Head and Neck Surgery, UT Southwestern Medical Center, 2350 North Stemmons Freeway, F6207, Dallas, TX 75019, USA. Electronic address: Romaine.Johnson@UTsouthwestern.edu.
2 Division of Otolaryngology, Department of Surgery, Texas Children's Hospital, Bobby R. Alford Department of Otorhinolaryngology and Communicative Sciences, Baylor College of Medicine, 6701 Fannin Street, D.640, Houston, TX 77030, USA. Electronic address: emashela@texaschildrens.org.