Department of Gastroenterology The Affiliated People' s Hospital of Yunyang Medical College Shiyan 442000 China;
Department of Gastroenterology The Affiliated People' s Hospital of Yunyang Medical College Shiyan 442000 China;
Department of Gastroenterology The Affiliated People' s Hospital of Yunyang Medical College Shiyan 442000 China;
Department of Obstetrics and Gynecology The Affiliated Taihe Hospital of Yunyang Medical College Shiyan 442000 China;