1. Department of Oncology, People’s Hospital, Xintai, China
2. Department of Geratology, Shanxi Cancer Hospital, Taiyuan, China
3. Department of Oncology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
4. Department of Chest Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
5. Department of Pathology, Shanxi Cancer Hospital, Taiyuan, China