1. Department of Respiratory Medicine, The First Affiliated Hospital of Soochow University, Suzhou, China
2. Department of Respiratory Medicine, Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, China
3. Department of Pathology, Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, China
4. Department of Laboratory Medicine, Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, China