1. Department of Biological Science and Technology, National Chiao Tung University, Hsinchu
2. Division of Molecular & Genomic Medicine, National Health Research Institutes, Miaoli
3. Division of Biotechnology & Pharmaceutical Research, National Health Research Institutes, Miaoli
4. Depertment of Microbiology and Immunology, National Defense Medical Center, Taipei, Taiwan, Republic of China