Columbia subject headings:
Harvard subject headings:
Longevity--United States--Nutritional aspects.
Medicare--Costs
Nutrition disorders in old age--United States--Prevention.
Older people--United States--Nutrition.
Princeton subject headings:
Longevity--United States--Nutritional aspects.
Medicare--Costs.
Nutrition disorders in old age--United States--Prevention.
Older people--Nutrition--United States.