1. Department of Thoracic Surgery, Tangdu Hospital, Fourth Military Medical University, Xi’an 710038, China
2. Department of Biochemistry and Molecular Biology, State Key Laboratory of Cancer Biology, Fourth Military Medical University, Xi’an 710032, China
3. Department of Public Health, Xi’an Medical University, Xi’an 710021, China
4. Department of Pulmonary Medicine, Xijing Hospital, Fourth Military Medical University, Xi’an 710032, China
5. Department of Hepato-Biliary and Pancreto-Splenic Surgery, Xijing Hospital, Fourth Military Medical University, Xi’an 710032, China