1. Department of Respiratory, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China
2. Department of Oncology, West China Hospital, Sichuan University, Chengdu, China
3. Department of Oncology, the First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
4. Department Oncology, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
5. Department Oncology, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China