1. Translational Research Center, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan, R.O.C.
2. Department of Oral Hygiene, Kaohsiung Medical University, Kaohsiung 807, Taiwan, R.O.C.
3. Department of Surgery, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan, R.O.C.
4. School of Dentistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan, R.O.C.
5. Department of Dentistry, China Medical University Hospital, Taichung 406, Taiwan, R.O.C.
6. Department of Dermatology, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan, R.O.C.