1. Department of Surgery and Science, Graduate School of Medical Sciences Kyushu University Fukuoka Japan
2. Department of Anatomic Pathology, Graduate School of Medical Sciences Kyushu University Fukuoka Japan
3. Department of Surgery and Endoscope Center, Oral Medicine Research Center Fukuoka Dental College Fukuoka Japan
4. Department of Surgery National Defense Medical College Tokorozawa Japan
5. Department of Pathology Nagasaki University Hospital International Medical Center Nagasaki Japan
6. Department of Surgery, Fukuoka Higashi Medical Center National Hospital Organization Koga Japan
7. Department of Laboratory Medicine National Defense Medical College Hospital Tokorozawa Japan