1. Institute of Medicine Chung Shan Medical University Taichung Taiwan
2. Chest Hospital Ministry of Health and Welfare Tainan Taiwan
3. Institute of Oral Sciences Chung Shan Medical University Taichung Taiwan
4. Department of Dentistry Chung Shan Medical University Hospital Taichung Taiwan
5. School of Medicine Chung Shan Medical University Taichung Taiwan
6. Department of Otolaryngology Chung Shan Medical University Hospital Taichung Taiwan
7. Department of Medical Research Chung Shan Medical University Hospital Taichung Taiwan
8. Department of Living Services Industry Tainan University of Technology Tainan Taiwan