1. Department of Diabetes, Metabolism, and EndocrinologyTokyo Metropolitan Geriatric Hospital Tokyo Japan
2. Department of Geriatric MedicineTokyo Metropolitan Institute of Gerontology Tokyo Japan
3. Department of NeurologyTokyo Metropolitan Geriatric Hospital Tokyo Japan
4. Department of PathologyTokyo Metropolitan Geriatric Hospital Tokyo Japan
5. Department of NeuropathologyTokyo Metropolitan Geriatric Hospital Tokyo Japan
6. Department of RadiologyTokyo Metropolitan Geriatric Hospital Tokyo Japan