1. Center for Regenerative Medicine, Institute for Translational Medicine, Qingdao University, Qingdao, Shandong Province, China
2. Department of Oncology, Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, China
3. Key Lab for Immunology in Universities of Shandong Province, School of Clinical Medicine, Weifang Medical University, Weifang, Shandong Province, China
4. Department of Oncology, PLA Army General Hospital, Beijin, China
5. Department of Gastroenterology, PLA Army General Hospital, Beijin, China