1. Central Laboratory of Shaanxi Provincial People's Hospital, The Third Affiliated Hospital of Medical School, Xi'an Jiaotong University, Shaanxi Province Research Centre of Cell Immunological Engineering and Technology, Key Laboratory of Microbial Infections and Autoimmune Diseases, Xi'an, Shaanxi 710068, P.R. China
2. Guangshui Traditional Chinese Medicine Hospital of Hubei Province, Hubei 432700, P.R. China
3. School of Public Health and Tropical Medicine, Tulane University, New Orleans, LA 70112, USA
4. Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, College of Life Sciences, Northwest University, Xi'an, Shaanxi 710069, P.R. China