1. The First Affiliated Hospital, Department of Infectious Diseases, Hengyang Medical School, University of South China, Hengyang, Hunan, China
2. The First Affiliated Hospital, Department of blood transfusion, Hengyang Medical School, University of South China, Hengyang, Hunan, China
3. The First Affiliated Hospital, Department of Clinical Laboratory, Hengyang Medical School, University of South China, Hengyang, Hunan, China
4. The First Affiliated Hospital, Department of Radiation Oncology, Hengyang Medical School, University of South China, Hengyang, Hunan, China