2Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan, R.O.C.
5Division of General Surgery, Department of Surgery, Taipei Medical University Hospital, Taipei, Taiwan, R.O.C.
6Department of Surgery, College of Medicine, Taipei Medical University, Taipei, Taiwan, R.O.C.
7Cancer Research Center, Taipei Medical University Hospital, Taipei, Taiwan, R.O.C.