1. Department of Thoracic Surgery, Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu 212000, P.R. China
2. Department of Preventive Medicine and Public Health Laboratory Science, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, P.R. China
3. Cell Medicine Laboratory, School of Medicine, Soochow University, Soochow, Jiangsu 215000, P.R. China