1. Department of Respiratory and Critical Care Medicine; Affiliated Hospital of Binzhou Medical University; Binzhou China
2. Department of Respiratory Medicine; Central Hospital of Xuzhou, Affiliated Xuzhou Hospital of Medical College of Southeast University; Xuzhou China
3. Department of Respiratory Medicine; Heze Municipal Hospital; Heze China
4. Department of Clinical Medical Technology; Affiliated Hospital of Binzhou Medical University; Binzhou China