1. Department of Biological Sciences, National Sun Yat-sen University, Kaohsiung, Taiwan
2. Department of Medical Education and Research, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
3. Department of Pediatrics, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
4. Department of Infectious Diseases, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
5. Department of Microbiology, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan