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