1. Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Xiangya Hospital, Central South University, Changsha, Hunan, China
2. Cancer Research Institute, Central South University, Changsha, Hunan, China
3. Changzhi Medical College, Changzhi, Shanxi, China
4. Department of Thoracic Surgery, Second Xiangya Hospital, Central South University, Changsha, Hunan, China
5. Institute of Medical Sciences, Xiangya Hospital, Central South University, Changsha, Hunan, China