1. Cancer Research Center, Changhua Christian Hospital, Changhua 500, Taiwan
2. School of Optometry, Chung Shan Medical University, Taichung 40201, Taiwan
3. Institute of Medicine, Chung Shan Medical University, Taichung 40201, Taiwan
4. Institute of Oral Sciences, Chung Shan Medical University, Taichung 40201, Taiwan
5. Department of Dentistry, Chung Shan Medical University Hospital, Taichung 40201, Taiwan
6. School of Medical Laboratory and Biotechnology, Chung Shan Medical University, Taichung 40201, Taiwan
7. Department of Clinical Laboratory, Chung Shan Medical University Hospital, Taichung 40201, Taiwan
8. Department of Medical Research, Chung Shan Medical University Hospital, Taichung 40201, Taiwan
9. Department of Otorhinolaryngology-Head and Neck Surgery, Changhua Christian Hospital, Changhua 500, Taiwan