1. School of Dentistry, College of Dental Medicine, Kaohsiung Medical University, Kaohsiung 807377, Taiwan, R.O.C.
2. Department of Radiation Oncology, Kaohsiung Medical University Hospital, Kaohsiung 807377, Taiwan, R.O.C.
3. Department of Family Medicine, Kaohsiung Medical University Hospital, Kaohsiung 807377, Taiwan, R.O.C.
4. Center for Cancer Research, Kaohsiung Medical University, Kaohsiung 807377, Taiwan, R.O.C.
5. Translational Research Center, Kaohsiung Medical University Hospital, Kaohsiung 807377, Taiwan, R.O.C.