| Affiliation: | 1. Institute of Epidemiology and Preventive Medicine, College of Public Health, National Taiwan University, Taipei, Taiwan;2. Graduate Institute of Clinical Dentistry, School of Dentistry, National Taiwan University, Taipei, Taiwan;3. Department of Dentistry, National Taiwan University Hospital, Taipei, Taiwan;4. Department of Electrical Engineering, College of Engineering, National Taiwan University, Taipei, Taiwan;5. Institute of Biophotonics, National Yang-Ming University, Taipei, Taiwan |
