Columbia subject headings:
Aging--Social aspects--Japan.
Older people--Japan.
Harvard subject headings:
Aging--Economic aspects--Japan.
Aging--Social aspects--Japan.
Older people--Care--Japan.
Older people--Government policy--Japan.
Older people--Japan--Social conditions.
Population aging--Japan.
Princeton subject headings:
Aging--Social aspects--Japan.
Older people--Japan.