1. Division of Clinical Research, National Health Research Institutes, Zhunan Town, Miaoli County
2. Department of Life Science and Institute of Biotechnology, National Tsing Hua University, Hsinchu
3. Department of Medical Laboratory Science and Biotechnology, Yuanpei University, Hsinchu
4. Department of Medicine, Chutung Veterans Hospital, and National Yang-Ming University, Taipei
5. Division of Infectious Disease and Tropical Medicine, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan