1. Oral Cancer Research Center, Changhua Christian Hospital, Changhua, Taiwan
2. Department of Otorhinolaryngology-Head and Neck Surgery, Changhua Christian Hospital, Changhua, Taiwan
3. Department of Post-Baccalaureate Medicine, College of Medicine, National Chung Hsing University, Taichung, Taiwan
4. Doctoral Program in Tissue Engineering and Regenerative Medicine, College of Medicine, National Chung Hsing University, Taichung, Taiwan
5. Graduate Institute of Biomedical Sciences, China Medical University, Taichung, Taiwan