Ph.D. in Medicine, Peking University; Associate Chief Physician, Second Ward of Gastrointestinal Center, Peking University Cancer Hospital. Specialties: Standardized comprehensive treatment of common gastrointestinal malignancies such as gastric cancer, colorectal cancer, and gastrointestinal stromal tumors, as well as minimally invasive treatment of gastrointestinal tumors. Key research focuses on early gastric cancer and conversion therapy for gastric cancer, with multiple SCI publications on predicting lymph node metastasis in early gastric cancer and function-preserving surgery. Principal investigator of the Beijing Yangfan Plan Clinical Technology Innovation Project. Editor-in-chief of the monograph *Standardized Surgery for Gastric Cancer*; contributing author to textbooks including *Introduction to Oncology, Second Edition*, *Surgery, Second Edition*, *National Medical Electronic Textbook: Surgery*, and *Clinical Oncology, Second Edition*. Professional Affiliations: Member, Medical Robot Development Promotion Branch, China Medical Education Association Member, Colorectal Branch, China International Exchange and Promotive Association for Medical and Health Care Publications and Monographs: *Standardized Surgery for Gastric Cancer*, Peking University Medical Press, Editor-in-Chief: Ji Jiafu, Bu Zhaode; Associate Editors: Zhang Yinan, Wu Xiaojiang Zhang Y, Zhang H, Yan Y, et al. Double-tract reconstruction is superior to esophagogastrostomy in controlling reflux esophagitis and enhancing quality of life after proximal gastrectomy: results from a prospective randomized controlled clinical trial in China[J]. Chinese Journal of Cancer Research, 2023, 35(6): 645. Wei J, Zhang Y, Liu Y, et al. Construction and validation of a risk-scoring model that preoperatively predicts lymph node metastasis in early gastric cancer patients[J]. Annals of Surgical Oncology, 2021: 1-8. Wei J, Zhang Y, Wang Z, et al. Identification of lymph node metastasis by computed tomography in early gastric cancer[J]. Chinese Journal of Cancer Research, 2021, 33(6): 671. Zhang Y, Liu Y, Zhang J, et al. Construction and external validation of a nomogram that predicts lymph node metastasis in early gastric cancer patients using preoperative parameters[J]. Chinese Journal of Cancer Research, 2018, 30(6): 623. Zheng Z, Zhang Y, Zhang L, et al. Nomogram for predicting lymph node metastasis rate of submucosal gastric cancer by analyzing clinicopathological characteristics associated with lymph node metastasis[J]. Chinese Journal of Cancer Research, 2015, 27(6): 572. Zhang Yinan, Ji Xin, Ji Jiafu. Advances in surgical treatment of gastric cancer[J]. Journal of Abdominal Surgery, 2017, 30(4): 237-240, 245.