1. Department of Otorhinolaryngology-Head and Neck Surgery, Albert Einstein School of Medicine/Montefiore Medical Center, Bronx, New York, New York, USA
2. Department of Otolaryngology-Head and Neck Surgery, Pham Ngoc Thach University of Medicine, Ho Chi Minh City, Vietnam
3. Ear, Nose, and Throat Hospital of Ho Chi Minh City, Ho Chi Minh City, Vietnam
4. Department of Otolaryngology-Head and Neck Surgery, University of North Carolina School of Medicine, Chapel Hill, North Carolina, USA