Cheng Yan, associate chief physician, associate professor. Studied in Japan for one year. Mainly engaged in medical treatment, teaching and scientific research of digestive diseases. Research direction: gastrointestinal motility disorders, gastrointestinal tumors and inflammatory bowel diseases. Presided over one national Natural Science Foundation project and two shaanxi Provincial Natural Science Foundation projects. Participated in editing 7 monographs. Won one Second prize of Science and Technology Progress award of Shaanxi Province, one teaching Achievement Award of Xi 'an Jiaotong University, and one national invention patent. Published 30 academic papers, 19 of which were included in SCI.
