Zheng Hai: Associate professor, deputy chief physician, tutor for master students, member of the National Expert Group of Disaster Medicine Committee of China Association of Integrated Traditional Chinese and Western Medicine, and editorial board of "Tissue Engineering Research and Clinical Rehabilitation in China".

Doctor of Surgery, Tongji Medical College, Huazhong University of Science and Technology, postdoctoral fellow, Medical College, University of South Carolina, USA, presided over 2 general projects of National Natural Science Foundation, participated in research work of NIH Fund, Provincial Science and Technology Commission, Education Commission and other topics in the United States, and published more than 20 articles in magazines at all levels. He has been engaged in clinical work of trauma surgery in gastrointestinal surgery for a long time, as well as scientific research work in wound repair, stem cells and tumors. His main interests are acute abdomen, multiple injuries, compound injuries and gastrointestinal diseases, and he has rich experience in surgical emergency rescue and treatment of gastrointestinal tumors.