1 Department of Electronics and Computer Engineering, Hanyang University, Seoul, Republic of Korea.
2 Department of Otorhinolaryngology-Head and Neck Surgery and Institute of New Frontier Research, Chuncheon Sacred Heart Hospital, Hallym University College of Medicine, Chuncheon, Republic of Korea.
3 Division of Cardiology, Department of Internal Medicine, College of Medicine, Hanyang University, Seoul, Republic of Korea.
4 Department of Pediatrics, College of Medicine, Hanyang University, Seoul, Republic of Korea.
5 Department of Electronics and Computer Engineering, Hanyang University, Seoul, Republic of Korea. dragon@hanyang.ac.kr.
6 Department of Otorhinolaryngology-Head and Neck Surgery, College of Medicine, Hanyang University, Seoul, Republic of Korea. shcho@hanyang.ac.kr.