Yu Zhang, male, born on April, 1977, published 12 SCI papers. M.M., Medical College of Nanchang University In 2016, one paper has been published in the journal of Am J Gastroenterol. E-mail:zhangyu783@126com. Tel:+8613757607090 Qualification 2008/08 – 2010.7, doctor, Department of Gastroenterology，Taizhou Hospital of Zhejiang Province, Wenzhou Medical College 2010.8 – now, attending doctor, Department of Gastroenterology，Taizhou Hospital of Zhejiang Province, Wenzhou Medical College