A total of 135 patients undergoing digestive endoscopy in the Department of Gastrointestinal Endoscopy of the Sixth Affiliated Hospital, Sun Yat-sen University, from January 2021 to April 2021 were en
A total of 135 patients undergoing digestive endoscopy in the Department of Gastrointestinal Endoscopy of the Sixth Affiliated Hospital, Sun Yat-sen University, were enrolled and randomly divided into
