Columbia subject headings:
Dissenters--Soviet Union.
Political prisoners--Soviet Union.
Psychiatry--Political aspects--Soviet Union.
Harvard subject headings:
Control (Psychology)
Dissenters--Soviet Union
Political prisoners--Soviet Union.
Psychiatry--Political aspects--Soviet Union.
Princeton subject headings:
Dissenters--Soviet Union.
Political prisoners--Soviet Union.
Psychiatry--Political aspects--Soviet Union.