1. Department of Gastroenterology and Hepatology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, People’s Republic of China
2. Department of Gastroenterology and Hepatology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, People’s Republic of China
3. Unit of Gastroenterology and Digestive Endoscopy, Sandro Pertini Hospital, Rome, Italy
4. Department of Surgery, University of TX Health Sciences Center, Houston, TX, United States
5. Independent Researcher, Islamabad, Pakistan
6. Department of General, Gastroenterological and Oncological Surgery, Nicolaus Copernicus University in Toruń, Poland