1. Department of Microbiology, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong 999077, China
2. Doctoral Program in Translational Medicine and Department of Life Sciences, National Chung Hsing University, Taichung 402, Taiwan
3. The iEGG and Animal Biotechnology Research Center, National Chung Hsing University, Taichung 402, Taiwan