Columbia subject headings:
Harvard subject headings:
Aging--Philosophy--Congresses.
Interdisciplinary research--Congresses.
Older people--Medical care--Congresses.
Older people--Social conditions--Congresses.
Princeton subject headings:
Aging--Philosophy--Congresses.
Interdisciplinary research--Congresses.
Older people--Medical care--Congresses.
Older people--Social conditions--Congresses.