Columbia subject headings:
Harvard subject headings:
Health insurance--Japan--Periodicals.
Social security--Japan--Statistics--Periodicals.
Unemployment insurance--Japan--Periodicals.
Workers' compensation--Japan--Periodicals.
Princeton subject headings:
Health insurance--Japan--Periodicals.
Social security--Japan--Statistics--Periodicals.
Unemployment insurance--Japan--Periodicals.
Workers' compensation--Japan--Periodicals.