1. Department of Internal Medicine, Taichung Veterans General Hospital, Taichung 40705, Taiwan
2. Division of Infectious Diseases, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung 40705, Taiwan
3. Genomic Center for Infectious Diseases, Taichung Veterans General Hospital, Taichung 40706, Taiwan
4. Institute of Molecular Biology, National Chung Hsing University, Taichung 40227, Taiwan
5. Department of Post-Baccalaureate Medicine, College of Medicine, National Chung Hsing University, Taichung 40227, Taiwan