1. National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Miaoli County, Taiwan, ROC
2. College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan, ROC
3. Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan, ROC
4. Graduate Institute of Basic Medicine Science, China Medical University, Taichung, Taiwan, ROC