1. Department of General Surgery Nanjing Gaochun People's Hospital Nanjing Jiangsu China
2. Day Observation Ward of The First Hospital of Jilin University Changchun Jilin China
3. Department of Gastroenterology Nanjing Gaochun People's Hospital Nanjing Jiangsu China
4. First Division of Surgery People's Hospital of Tongchuan Tongchuan Shaanxi China
5. Department of Internal Medicine Tangshan Third Hospital Tangshan Hebei China
6. Department of Botany & Microbiology, College of Science King Saud University Riyadh Saudi Arabia
7. Department of Gastroenterology The First People's Hospital of Taizhou Taizhou Zhejiang China