Elderly person fact-finding
- 2016 elderly person fact-finding
- 2013 elderly person fact-finding
- 2010 elderly person fact-finding
- 2007 elderly person fact-finding
- Coming life and questionnaire about purpose of life
- 2004 elderly person fact-finding: Information for City of Yokohama, Health and Social Welfare Bureau advanced age Health and Welfare Department welfare for the elderly
