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. Zimmerman is Chairman, Department of Medicine, Mount Sinai Hospital, and Professor and Chairman, Department of Medicine, Chicago Medical School.
DIAGNOSTIC PROBLEMS. JAMA. 1958;167(13):1625–1632. doi:10.1001/jama.1958.02990300051011