1. Department of Gastrointestinal and Hepato-Biliary-Pancreatic Surgery, Nippon Medical School
2. Division of Aging and Carcinogenesis, Research Team for Geriatric Pathology, Tokyo Metropolitan Institute of Gerontology
3. Department of Chemistry, School of Science, The University of Tokyo
4. Research Team for Geriatric Medicine (Vascular Medicine), Tokyo Metropolitan Institute of Gerontology
5. Department of Veterinary Pathology, School of Veterinary Medicine, Nippon Veterinary and Life Science University
6. Department of Integrated Diagnostic Pathology, Nippon Medical School
7. Department of Pathology, Tokyo Metropolitan Geriatric Hospital and Institute of Gerontology