Columbia subject headings:
Medicare--Law and legislation.
Older people--Medical care--Law and legislation--United States.
Preventive health services for older people--Law and legislation--United States.
Harvard subject headings:
Medicare--Law and legislation.
Older people--Medical care--Law and legislation--United States.
Preventive health services for older people--Law and legislation--United States.
Princeton subject headings:
Medicare--Law and legislation.
Older people--Medical care--Law and legislation--United States.
Preventive health services for older people--Law and legislation--United States.