1. Department of Gastroenterology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi Province, China
2. Jiangxi Province Medical College of Nanchang University, Nanchang, Jiangxi Province, China
3. Department of General Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi Province, China
4. Department of General Surgery, Third Affiliated Hospital of Nanchang University, Nanchang, Jiangxi Province, China
5. Department of Oncology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi Province, China