Columbia subject headings:
Compulsory health insurance--United States.
Health insurance--United States.
United States--Politics and government--1933-1945.
Harvard subject headings:
Compulsory health insurance--United States.
Health insurance--United States
United States--Politics and government--1933-1945.
Princeton subject headings:
Compulsory health insurance--United States.
Health insurance--United States.
United States--Politics and government--1933-1945.