1. Department of Otorhinolaryngology Yonsei University Wonju College of Medicine Wonju South Korea
2. Research Institute of Hearing Enhancement, Yonsei University Wonju College of Medicine Wonju South Korea
3. Faculty of Health sciences Curtin University Bentley WA Australia
4. Department of Otorhinolaryngology Myongji Hospital, Hanyang University College of Medicine
5. Curtin Health Innovation Research Institute, Curtin University Bentley WA Australia