1. Department of Laboratory Medicine, Korea University College of Medicine, Seoul, Korea
2. Department of Laboratory Medicine, Korea University Ansan Hospital, Ansan, Korea
3. Department of Laboratory Medicine and Genetics, Soonchunhyang University Bucheon Hospital, Soonchunhyang University College of Medicine, Bucheon, Korea
4. Department of Otorhinolaryngology-Head and Neck Surgery, Korea University College of Medicine, Seoul, Korea
5. Department of Laboratory Medicine, International St. Mary’s Hospital, Catholic Kwandong University College of Medicine, Incheon, Korea