1. Institute of Preventive Medicine, National Defense Medical Center, Sanhsia District, New Taipei City 23742, Taiwan, Republic of China
2. Department and Graduate Institute of Microbiology and Immunology, National Defense Medical Center, Neihu District, Taipei City 11490, Taiwan, Republic of China
3. Graduate Institute of Medical Science, National Defense Medical Center, Neihu District, Taipei City 11490, Taiwan, Republic of China
4. School of Pharmacy, National Defense Medical Center, Neihu District, Taipei City 11490, Taiwan, Republic of China