1. The National Institute of Population and Social Security Research has issued a report on future demographic trends in Japan: cabinet office government of Japan 1994 http://www5.cao.go.jp/keizai3/keizaiwp/wp-je96/wp-je96fu-3-4-2fc-a.html
2. Geriatric conditions and disability: the Health and Retirement Study;Cigolle;Ann Intern Med,2007
3. Assessment and management of nutrition in older people and its importance to health;Ahmed;Clin Interv Aging,2010
4. The Mini Nutritional Assessment (MNA) review of the literature - what does it tell us?;Guigoz;Nutr Health Aging,2006
5. Nutritional issues in long-term care;Sloane;J Am Med Dir Assoc,2008