1. Department of Thoracic Surgery; Shanghai Pulmonary Hospital; Tongji University School of Medicine; Shanghai P. R. China
2. Department of Pathology; Shanghai Pulmonary Hospital; Tongji University School of Medicine; Shanghai P. R. China
3. Department of Radiology; Shanghai Pulmonary Hospital; Tongji University School of Medicine; Shanghai P. R. China
4. Division of Epidemiology; Department of Health Sciences Research; Mayo Clinic; Rochester Minnesota
5. Department of Thoracic Surgery; The Second Affiliated Hospital of Soochow University; Jiangsu P. R. China
6. Department of Thoracic Surgery; The Affiliated Wujiang Hospital of Nantong University; Jiangsu P. R. China
7. Department of Thoracic Surgery; Nantong Sixth People's Hospital; Jiangsu P. R. China
8. Department of Thoracic Surgery; Fenghua People's Hospital; Zhejiang P. R. China