Columbia subject headings:
Aging--Social aspects--Congresses.
Life change events in old age--Congresses.
Older people--Psychology--Congresses.
Harvard subject headings:
Aging--Social aspects--Congresses.
Life change events in old age--Congresses.
Older people--Psychology--Congresses.
Princeton subject headings:
Aging--Social aspects--Congresses.
Life change events in old age--Congresses.
Older people--Psychology--Congresses.