Columbia subject headings:
Harvard subject headings:
Grants-in-aid--United States.
Immunization of children--United States--Finance.
Preventive health services for children--United States--Finance.
Vaccination of children--United States--Finance.
Princeton subject headings:
Grants-in-aid--United States.
Immunization of children--United States--Finance.
Preventive health services for children--United States--Finance.
Vaccination of children--United States--Finance.