1. Department of Medical Oncology, Cancer Center, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
2. West China School of Public Health, Sichuan University, Chengdu, China
3. Department of Nuclear Medicine, West China Hospital, Sichuan University, Chengdu, China
4. Translational Radiation Oncology, National Center for Tumor Diseases (NCT), German Cancer Research Center (DKFZ), Heidelberg, Germany
5. Heidelberg Ion Therapy Center (HIT), Department of Radiation Oncology, University Heidelberg Medical School, Heidelberg, Germany
6. German Consortium for Translational Cancer Research (DKTK), German Cancer Research Center (DKFZ), Heidelberg, Germany
7. Department of Gastrointestinal Surgery, West China Hospital, Sichuan University, Chengdu, China