1. Division of General Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei 112, Taiwan, R.O.C.
2. Department and Institute of Pharmacology, School of Medicine, National Yang-Ming University, Taipei 112, Taiwan, R.O.C.
3. Department of Anatomy and Cell Biology, School of Medicine, National Yang-Ming University, Taipei 112, Taiwan, R.O.C.
4. Department of Medical Research, Taipei Veterans General Hospital, Taipei 112, Taiwan, R.O.C.
5. Department of Pathology, Taipei Veterans General Hospital, Taipei 112, Taiwan, R.O.C.
6. Institute of Clinical Medicine, School of Medicine, National Yang-Ming University, Taipei 112, Taiwan, R.O.C.