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Postgraduate Medicine Volume 66, 1979 - Issue 2
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MEDICAL STUDIES

Contributory cause: Unnecessary and insufficient

Richard Riegelman
, MD, MPH
Pages 177-179 | Published online: 07 Jul 2016

References

  • Lilienfeld AM: Foundations of Epidemiology. New York, Oxford University Press, 1976, p 250
  • Murphy EA: The Logic of Medicine. Baltimore, Johns Hopkins University Press, 1976, p 180

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