1. Division of General Surgery Chang Gung Memorial Hospital Taoyuan City Taiwan
2. Division of Emergency and Critical Care Radiology Department of Medical Imaging and Intervention Chang Gung Memorial Hospital Taoyuan City Taiwan
3. Department of Anatomic Pathology College of Medicine Linkou Chang Gung Memorial Hospital Chang Gung University Taoyuan City Taiwan
4. Graduate Institute of Clinical Medical Sciences Chang Gung University Taoyuan City Taiwan
5. Department of Gastroenterology and Hepatology Chang Gung Memorial Hospital Taoyuan City Taiwan