1. Department of Digestive Endoscopy, Jiangxi Cancer Hospital, Nanchang, Jiangxi, China (mainland)
2. Department of Intensive Medicine, Jiangxi Cancer Hospital, Nanchang, Jiangxi, China (mainland)
3. Department of Gastroenterology, First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China (mainland)