1. Department of Radiation Oncology; Fudan University Shanghai Cancer Center; Shanghai China
2. Department of Oncology; Shanghai Medical College; Fudan University; Shanghai China
3. Department of Pathology; Fudan University Shanghai Cancer Center; China
4. Department of Thoracic Surgery; Fudan University Shanghai Cancer Center; China
5. State Key Laboratory of Cancer Biology & Xijing Hospital of Digestive Diseases; Fourth Military Medical University; Xi'an China
6. Department of Radiation Oncology; Shanghai Proton and Heavy Ion Center; Fudan University Cancer Hospital; Shanghai China