Doctor of Medicine, Chief Physician, Department of Interventional Therapy, Peking University Cancer Hospital **Professional Expertise:** Minimally invasive interventional therapy for primary liver cancer and liver metastases, ablative therapy for malignant tumors, and radioactive seed implantation. **Professional Affiliations:** Expert Reviewer for Medical Devices, CFDA; Member of the Expert Committee on Liver Metastases and Conversion Therapy, Tumor Interventional Therapy Committee, Chinese Anti-Cancer Association; Member of the Expert Committee on Chemotherapy and Immunotherapy, Tumor Interventional Therapy Committee, Chinese Anti-Cancer Association; Member of the Cryoablation and Targeted Tumor Therapy Committee, National Tumor Minimally Invasive Therapy Industry Technology Innovation Strategic Alliance; Member of the Liver Cancer Minimally Invasive Therapy Committee and Liver Cancer Immunotherapy Committee, National Tumor Minimally Invasive Therapy Industry Technology Innovation Strategic Alliance. **Representative Publications:** l Xu Haifeng, Zhu Xu*, Chen Hui, Liu Peng, Gao Qinzong. Digital subtraction angiography manifestations and interventional therapy efficacy analysis of hemorrhage after partial nephrectomy. National Medical Journal of China, 2021, 101(11): 766-769. l Qi Zhang#, Hai-Feng Xu#, Wen-Yue Song, Peng-Jun Zhang, Yong-Bo Song*. Potential microRNA panel for the diagnosis and prediction of overall survival of hepatocellular carcinoma with hepatitis B virus infection. World Journal of Gastrointestinal Oncology, 2020 April 15; 12(4): 383-393. l Yao Cui#, Hai-Feng Xu#, Ming-Yue Liu, Yu-Jie Xu, Jun-Chuang He, Yun Zhou, Shun-Dong Cang*. Mechanism of exosomal microRNA-224 in development of hepatocellular carcinoma and its diagnostic and prognostic value. World Journal of Gastroenterology, 2019 April 21; 25(15): 1890-1898. l Chao Geng#, Hai-Feng Xu#, Yinliang Zhang, Yong Gao, Meixia Li, Xiaoyan Liu, Mingyue Gao, Xiaojuan Wang, Xiaojun Liu*, Fude Fang*, Yongsheng Chang*. Retinoic acid ameliorates high-fat diet-induced liver steatosis through sirt1. SCIENCE CHINA Life Sciences, 2017, 60(11), 1234-1241. l Hai-Feng Xu, RenJie Yang#, Xiao-Dong Wang, Xu Zhu, Hui Chen. Symptomatic pulmonary lipiodol embolism after transarterial chemoembolization for hepatic malignant tumor: clinical presentation and chest imaging findings. Chinese Medical Journal, 2014; 127(4): 675-679. Participated in multiple research projects including the National "12th Five-Year Plan" Major Project, General Projects of the National Natural Science Foundation of China, and General Projects of the Beijing Natural Science Foundation.