1 Department of Medical Oncology, Cancer Center and State Key Laboratory of Biotherapy, Lung Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan.
2 Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu.
3 Department of Thoracic Surgery, West China Hospital, Sichuan University, No. 37, Guoxue Alley, Chengdu, China.