1. Department of Biotechnology, National Kaohsiung Normal University, Kaohsiung, Taiwan;
2. Department of Internal Medicine, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan;
3. School of Medicine, Institute of Public Health, National Yang-Ming University, Taipei, Taiwan;
4. Medical Research Department, General Clinical Research Center, Taipei Veterans General Hospital, Taipei, Taiwan;
5. Department of Internal Medicine, National Yang-Ming University, Taipei, Taiwan