1. Department of Gastroenterology, Henan Provincial People’s Hospital, Zhengzhou University People’s Hospital, Zhengzhou, China
2. Department of Gastroenterology, The Second Xiangya Hospital, Central South University, Changsha, China
3. Department of Medical Genetics, The Second Xiangya Hospital, Central South University, Changsha, China
4. The National & Local Joint Engineering Laboratory of Animal Peptide Drug Development, College of Life Sciences, Hunan Normal University, Changsha, Hunan, China