1. Department of Biochemistry and Molecular Biology, Dalian Medical University, Dalian 116044, China
2. Department of Microbiology, Dalian Medical University, Dalian 116044, China
3. Department of Experimental Teaching Center of Public Health, Dalian Medical University, Dalian 116044, China
4. Department of Immunology, Dalian Medical University, Dalian 116044, China
5. Pharmaceutical Research Center, The Second Affiliated Hospital, Dalian Medical University, Dalian 116044, China