1 Department of Radiation Oncology, Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China; Lung Cancer Center & Institute, West China Hospital, Sichuan University, Chengdu, Sichuan, China.
2 Lung Cancer Center & Institute, West China Hospital, Sichuan University, Chengdu, Sichuan, China; Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, China.
3 Lung Cancer Center & Institute, West China Hospital, Sichuan University, Chengdu, Sichuan, China; Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, China. Electronic address: liwensc@163.com.