1. Department of Laboratory Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
2. Institute of Analytical Chemistry, College of Chemistry and Molecular Engineering, Peking University, Beijing, China
3. Department of Microbiology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China
4. Department of Microbiology and Immunology, Indiana University School of Medicine—Northwest, Gary, Indiana, USA