1. Graduate Institute of Clinical Dentistry, School of Dentistry, National Taiwan University, Taipei, Taiwan.
2. Faculty of Dentistry, National University of Singapore, Singapore, Singapore.
3. Singapore Bioimaging Consortium (SBIC), Agency for Science, Technology, and Research (A*STAR), Singapore, Singapore.
4. Department of Chemical and Biomolecular Engineering, Faculty of Engineering, National University of Singapore, Singapore, Singapore.