Columbia subject headings:
Harvard subject headings:
Chemical weapons--Iraq--Military policy.
Chemical weapons--Iraq.
Chemical weapons--United States--Military policy.
Persian Gulf War, 1991--Chemical warfare
Persian Gulf War, 1991--Chemical warfare--Physiological effect.
Persian Gulf War, 1991--Veterans--Diseases--Research--United States.
Princeton subject headings:
Chemical weapons--Iraq.
Persian Gulf War, 1991--Chemical warfare--Physiological effect.
Persian Gulf War, 1991--Veterans--Diseases--Research--United States.