1. National Institute of Cancer Research, National Health Research Institutes; Department of Internal Medicine, National Cheng-Kung University Hospital, Tainan; Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
2. National Institute of Cancer Research, National Health Research Institutes; Department of Internal Medicine, National Cheng-Kung University Hospital, Tainan, Taiwan
3. Cancer Center, Taipei Veterans General Hospital, Taipei, Taiwan
4. National Institute of Cancer Research, National Health Research Institutes, Tainan, Taiwan
5. National Institute of Cancer Research, National Health Research Institutes, Tainan; Cancer Research Institute, Wan-Fang Hospital, Taipei Medical University, Taipei, Taiwan