1. School of Medical Laboratory and Biotechnology, Chung Shan Medical University, Taichung 40201, Taiwan, R.O.C.
2. Oral Cancer Research Center, Changhua Christian Hospital, Changhua 500, Taiwan, R.O.C.
3. Division of Hematology and Oncology, Department of Medicine, Changhua Christian Hospital, Changhua 500, Taiwan, R.O.C.