1. Departments of Microbiology & Immunology, College of Medicine, National Cheng Kung University, Tainan, Taiwan, Republic of China
2. Departments of Pediatrics, College of Medicine, National Cheng Kung University, Tainan, Taiwan, Republic of China
3. Departments of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan, Republic of China