1. Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan
2. Department of Clinical Laboratory, Chest Hospital, Ministry of Health and Welfare, Tainan, Taiwan
3. Department of Microbiology and Immunology, College of Medicine, National Cheng Kung University, Tainan, Taiwan
4. Department of Parasitology, College of Medicine, National Cheng Kung University, Tainan, Taiwan