1. Cheeloo College of Medicine Shandong University Jinan China
2. Department of Radiation Oncology Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences Jinan China
3. Department of Thoracic Tumor Affiliated Hospital of Jining Medical University Jining China
4. Department of Radiation Oncology Yantai Affiliated Hospital of Binzhou Medical University Yantai China
5. School of Electronics Information and Electrical Engineering Shanghai Jiao Tong University Shanghai China
6. Department of Radiology Shandong Provincial Hospital Cheeloo College of Medicine Shandong University Jinan China