1. School of Dentistry, Chung Shan Medical University, Taichung 40201, Taiwan
2. Department of Dentistry, Chung Shan Medical University Hospital, Taichung 40201, Taiwan
3. Institute of Medicine, Chung Shan Medical University, Taichung 402, Taiwan
4. School of Medical Laboratory and Biotechnology, Chung Shan Medical University, Taichung 40201, Taiwan
5. Department of Pathology, Changhua Christian Hospital, Changhua 50006, Taiwan
6. Department of Medical Research, Chung Shan Medical University Hospital, Taichung 40201, Taiwan
7. Institute of Oral Sciences, Chung Shan Medical University, Taichung 40201, Taiwan