1. Department of Medical Imaging and Intervention, Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Linkou Medical Center, Taoyuan
2. Department of General surgery, Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Linkou Medical Center, Taoyuan
3. Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Taoyuan
4. Department of Surgery, Xiamen Chang Gung Hospital, Xiamen, Fujian, China
5. Department of Radiology, Xiamen Chang Gung Hospital, Xiamen, Fujian, China