1 Department of Otorhinolaryngology-Head & Neck Surgery, CHA Bundang Medical Center, CHA University, Seongnam, Republic of Korea.
2 Department of Otorhinolaryngology-Head & Neck Surgery, Hallym University College of Medicine, Anyang, Republic of Korea.
3 Department of Statistics Hallym University Chuncheon Republic of Korea.
4 Department of Otorhinolaryngology-Head & Neck Surgery, Hallym University College of Medicine, Anyang, Republic of Korea, Hallym Data Science Laboratory Hallym University College of Medicine, Anyang Republic of Korea.