1. Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan, R.O.C.
2. Laboratories of Medical Research, Center for Education and Faculty Development, Kaohsiung Armed Forces General Hospital, Kaohsiung 80284, Taiwan, R.O.C.
3. Department of Biochemistry, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan, R.O.C.