Affiliation: | 1. Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan;2. Department of Oral Pathology, Chung Shan Medical University Hospital, Taichung, Taiwan;3. School of Public Health, Chung Shan Medical University, Taichung, Taiwan;4. Department of Dentistry, Chung Shan Medical University Hospital, Taichung, Taiwan;5. School of Dentistry, Chung Shan Medical University, Taichung, Taiwan |