1. Department of Thoracic Surgery, Fujian Medical University Cancer Hospital, Fuzhou, Fujian 350014, P.R. China
2. Department of Chemotherapy, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian 350005, P.R. China
3. Department of Pathology, Fujian Cancer Hospital and Fujian Medical University Cancer Hospital, Fuzhou, Fujian 350014, P.R. China
4. Department of Cardiac Surgery, Fujian Provincial Hospital, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, Fujian 350001, P.R. China