Columbia subject headings:
Diseases--Causes and theories of causation.
Medicine, Preventive--Government policy--Political aspects.
Science--Political aspects.
Harvard subject headings:
Diseases--Causes and theories of causation
Medicine, Preventive--Government policy--Political aspects.
Science--Political aspects.
Princeton subject headings:
Diseases--Causes and theories of causation.
Medicine, Preventive--Government policy--Political aspects.
Science--Political aspects.