1. Division of Molecular Pathology, Institute of Medical Science; The University of Tokyo; 4-6-1 Shirokanedai Minato-ku Tokyo 108-8639 Japan
2. Department of Cellular and Organ Pathology, Graduate School of Medicine; Akita University; Akita Japan
3. Department of Pathology, Faculty of Medicine; Khon Kaen University; Khon Kaen Thailand
4. Department of Biochemistry, Faculty of Medicine; Khon Kaen University; Khon Kaen Thailand