Dr. Kushner is Associate Director of Medical Education, Cook County Hospital, and Instructor in Medicine, Northwestern University Medical School; Dr. Szanto is Director, Department of Pathology, Cook County Hospital, and Professor of Pathology, Chicago Medical School.
Dr. Armstrong is Director of Medical Education, Cook County Hospital, and Professor of Medicine, University of Illinois.
DIAGNOSTIC PROBLEMS. JAMA. 1957;165(13):1690–1696. doi:10.1001/jama.1957.02980310042011
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