1. State Key Laboratory of Molecular Oncology; Department of Etiology and Carcinogenesis; National Cancer Center/Cancer Hospital; Chinese Academy of Medical Sciences and Peking Union Medical College; Beijing China
2. Department of Endoscopy; National Cancer Center/Cancer Hospital; Chinese Academy of Medical Sciences and Peking Union Medical College; Beijing China
3. Department of Pulmonary and Critical Care Medicine; Center for Respiratory Diseases; China-Japan Friendship Hospital; Beijing China
4. Department of Thoracic Surgery; National Cancer Center/Cancer Hospital; Chinese Academy of Medical Sciences and Peking Union Medical College; Beijing China