Chief Physician, Master's Supervisor, Deputy Head of the Rectal Cancer Group of the Fourth Committee of the Tumor Radiotherapy Professional Committee of the Chinese Anti-Cancer Association, Standing Committee Member of the Gastrointestinal Subcommittee of the Geriatric Oncology Professional Committee of the Chinese Gerontology Society, Standing Committee Member of the 11th Committee of the Beijing Medical Association's Radiation Oncology Branch, Standing Committee Member of the Radiotherapy Subcommittee of the Geriatric Oncology Professional Committee of the Chinese Gerontology Society, etc.; Over more than 30 years of clinical work, has accumulated extensive clinical experience in radiotherapy for various tumors, particularly achieving satisfactory results in multidisciplinary collaborative treatment for digestive system tumors (gastrointestinal, biliary tract, and pancreatic tumors) and urological system tumors (renal cancer, urothelial carcinoma, prostate cancer). Pioneered preoperative radiotherapy for rectal cancer in China, playing a significant role in reducing local recurrence rates and improving sphincter preservation rates; has published over 30 professional treatises and reviews, and received one Third Prize of the Beijing Science and Technology Award.