Dr. Bing Yan, PhD, Attending physician. In August 2014, Dr. Bing Yan graduated from the Second Military and Medical University. In recent 5 years, he directed a project from the National Natural Science Foundation of China and a project from  natural science foundation of hainan province, two projects from sanya medical and health science innovation project. Already published 9 papers in SCIE journals and 21 papers in Chinese core journals as the first author or corresponding author in recent 5 years. Working as an editorial board member for World Chinese Journal of Digestology from 2015-2020 and as a reviewers for BMC Cancer, International Journal of Oncology, World Journal of Gastroenterology.