Columbia subject headings:
Medical care, Cost of--United States.
Medical economics--United States.
Medicine--Research--United States--Cost effectiveness.
Mortality--United States.
Harvard subject headings:
Diseases--Economic aspects--United States.
Medical care, Cost of--United States
Medicine--Research--United States--Cost effectiveness.
Mortality--United States.
Princeton subject headings:
Diseases--Economic aspects--United States.
Medical care, Cost of--United States.
Medicine--Research--United States--Cost effectiveness.
Mortality--United States.