1. Department of Medical Laboratory Science and Biotechnology, Central Taiwan University of Science and Technology, Taichung 406, Taiwan, Republic of China
2. Department of Biomedical Sciences, Chung Shan Medical University, Taichung 402, Taiwan, Republic of China
3. Institute of Medical Biotechnology, Central Taiwan University of Science and Technology, Taichung 406, Taiwan, Republic of China
4. Institute of Microbiology, Immunology and Molecular Medicine, Tzu Chi University, Hualien 970, Taiwan, Republic of China