1. Department of Otolaryngology‐Head and Neck Surgery, Cardinal Tien Hospital and School of Medicine College of Medicine, Fu Jen Catholic University New Taipei City 23148 Taiwan
2. Department of Otolaryngology‐Head and Neck Surgery National Taiwan University Hospital Taipei 100225 Taiwan
3. Department of Internal Medicine, Cardinal Tien Hospital and School of Medicine College of Medicine, Fu Jen Catholic University New Taipei City 23148 Taiwan
4. Department of Electrical Engineering National Chin‐Yi University of Technology Taichung 411030 Taiwan
5. Department of Electronics and Electrical Engineering National Yang Ming Chiao Tung University Hsinchu 300093 Taiwan