1. Department of Obstetrics and Gynecology Keio University School of Medicine Tokyo Japan
2. Department of Surgery Keio University School of Medicine Tokyo Japan
3. Department of Surgery, Division of Gastroenterological and General Surgery, School of Medicine Showa University Tokyo Japan
4. Department of Pediatric Surgery Keio University School of Medicine Tokyo Japan
5. Department of Pathology Keio University School of Medicine Tokyo Japan
6. Department of Anesthesiology Saiseikai Kanagawaken Hospital Kanagawa Japan
7. Department of Pathology Shiga University of Medical Science Shiga Japan
8. Research Center for Animal Life Science Shiga University of Medical Science Shiga Japan
9. Safety Research Center Ina Research, Inc. Nagano Japan
10. Department of Molecular Life Science, Division of Basic Medical Science and Molecular Medicine Tokai University School of Medicine Kanagawa Japan