1. Department of Otorhinolaryngology-Head and Neck Surgery, CHA Bundang Medical Center, CHA University, Seongnam, Korea;
2. Hallym Data Science Laboratory, Hallym University College of Medicine, Anyang, Korea;
3. Graduate School of Public Health, Seoul National University, Seoul, Korea;
4. Department of Otorhinolaryngology-Head and Neck Surgery, Hallym University College of Medicine, Anyang, Korea