Columbia subject headings:
Harvard subject headings:
Persian Gulf War, 1991--Veterans--Health and hygiene--United States.
Persian Gulf syndrome--United States.
Pyridostigmine bromide--Health aspects--United States.
Princeton subject headings:
Persian Gulf War, 1991--Veterans--Health and hygiene--United States.
Persian Gulf syndrome--United States.
Pyridostigmine bromide--Health aspects--United States.