1. Thoracic Oncology Ward, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan 610000, P.R. China
2. Department of Oncology, The Second People's Hospital of Yibin, Yibin, Sichuan 644000, P.R. China
3. Shenzhen University Medical School, Shenzhen University, Shenzhen, Guangdong 518060, P.R. China