Prof. Xianglin Yuan graduated from Tongji Medical University in 1987. He is the director of the Department of Oncology， Tongji Hospital of Tongji Medical College of Huazhong University of Science and Technology. He studied at MD Anderson Cancer Center in the United States for over a year. He is currently the vice chairman of the Gastric Cancer Professional Committee of the Chinese Society of Clinical Oncology (CSCO); the vice chairman of the Colorectal Professional Committee of the Chinese Society of Clinical Oncology (CSCO); the chairman of the Tumor Supportive Treatment Professional Committee of the Chinese Anti-Cancer Association; and the vice chairman of the Tumor Marker Committee of the Chinese Anti-Cancer Association. He is good at chemotherapy, precision radiotherapy and targeted therapy for various tumors (such as lung cancer, esophagal cancer, gastric cancer, liver cancer, colorectal cancer, prostate cancer, cervical cancer, etc.). He is at the leading level in the research of radiation-induced lung injury in China and has unique experience in the precision treatment of malignant tumors.