Columbia subject headings:
Gerontology--Cross-cultural studies.
Older people--Canada--Social conditions.
Older people--Care--Canada.
Older people--Care--United States.
Older people--United States--Social conditions.
Harvard subject headings:
Gerontology--Cross-cultural studies.
Older people--Canada--Social conditions.
Older people--Care--Canada.
Older people--Care--United States.
Older people--United States--Social conditions.
Princeton subject headings:
Gerontology--Cross-cultural studies.
Older people--Canada--Social conditions.
Older people--Care--Canada.
Older people--Care--United States.
Older people--United States--Social conditions.