1. The Core Laboratory for Public Health Science and Practice; The First Affiliated Hospital; China Medical University; Shenyang China
2. Key Laboratory of AIDS Immunology of the National Health and Family Planning Commission; Department of Laboratory Medicine; The First Affiliated Hospital; China Medical University; Shenyang China
3. Department of Neurosurgery; The First Affiliated Hospital; China Medical University; Shenyang China
4. Department of Microbiology and Immunology; Columbia University; New York NY USA
5. Department of Medicine; Microbiology and Immunology; University of California; San Francisco CA USA