1 Guoliang Zheng, MD, Department of Gastric Surgery, Cancer Hospital of China Medical University, Cancer Hospital of Dalian University of Technology, Liaoning Cancer Hospital & Institute, Shenyang, China, Xin Zhang, MDDepartment of Nuclear Medicine, Shengjing Hospital of China Medical University, Shenyang, China, Jing Zhang, MD, School of Pharmacy, China Medical University, Shenyang, China, Zhendong Zheng, MD, Oncology Department, General Hospital of Northern Theater Command, Shenyang, China, Yan Zhao, MD, Department of Gastric Surgery, Cancer Hospital of China Medical University; Cancer Hospital of Dalian University of Technology; Liaoning Cancer Hospital & Institute, Shenyang, China.