1. Department of Immunology, Key Laboratory of Immune Mechanism and Intervention on Serious Disease in Hebei Province, Hebei Medical University, Shijiazhuang, China
2. Clinical Laboratory, Hebei Key Laboratory of Laboratory Medicine, the Second Hospital of Hebei Medical University, Shijiazhuang, China
3. Respiratory Medicine, the Second Hospital of Hebei Medical University, Shijiazhuang, China