Department of Gastroenterology, The First Affiliated Hospital of Xinxiang Medical University, Weihui, Henan 453100, China;
Depatment of Stomatology, The First Affiliated Hospital of Xinxiang Medical University, Weihui, Henan 453100, China;
Department of Gastroenterology, The First Affiliated Hospital of Xinxiang Medical University, Weihui, Henan 453100, China;
Department of Gastroenterology, The First Affiliated Hospital of Xinxiang Medical University, Weihui, Henan 453100, China;