1. Department of Clinical Laboratory Medicine, The Affiliated Hospital to Changchun University of Chinese Medicine, Changchun, China.
2. Intensive Care Unit, 964th Hospital of PLA, Changchun, China.
3. Department of Hematology, Shaanxi Provincial People's Hospital and the Affiliated Hospital of Xi'an Medical University, Xi'an, China.
4. Department of Clinical Laboratory Medicine, and Shaanxi Provincial People's Hospital and the Affiliated Hospital of Xi'an Medical University, Xi'an, China.
5. Department of Infectious Diseases, Shaanxi Provincial People's Hospital and the Affiliated Hospital of Xi'an Medical University, Xi'an, China.