Columbia subject headings:
Older people--Medical care--United States--Statistics.
Older people--Services for--United States--Statistics.
Older people--United States--Economic conditions--Statistics.
Older people--United States--Social conditions--Statistics.
Harvard subject headings:
Older people--Medical care--United States--Statistics.
Older people--Services for--United States--Statistics.
Older people--United States--Economic conditions--Statistics.
Older people--United States--Social conditions--Statistics.
Princeton subject headings:
Older people--Medical care--United States--Statistics.
Older people--Services for--United States--Statistics.
Older people--United States--Economic conditions--Statistics.
Older people--United States--Social conditions--Statistics.