1. Department of Radiology; Faculty of Medicine; Khon Kaen University; 123 Mitraparb Road Khon Kaen 40002 Thailand
2. Liver Fluke and Cholangiocarcinoma Research Center; Faculty of Medicine; Khon Kaen University; Khon Kaen Thailand
3. Department of Pathology; Faculty of Medicine; Khon Kaen University; Khon Kaen Thailand
4. Department of Surgery; Faculty of Medicine; Khon Kaen University; Khon Kaen Thailand
5. Department of Biochemistry; Faculty of Medicine; Khon Kaen University; Khon Kaen Thailand
6. Department of Parasitology; Faculty of Medicine; Khon Kaen University; Khon Kaen Thailand