1. Department of Medical Oncology, The First Hospital of China Medical University, Shenyang 110001, China
2. Key Laboratory of Anticancer Drugs and Biotherapy of Liaoning Province, The First Hospital of China Medical University, Shenyang 110001, China
3. Liaoning Province Clinical Research Center for Cancer, The First Hospital of China Medical University, Shenyang 110001, China
4. Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors, Ministry of Education, The First Hospital of China Medical University, Shenyang 110001, China