Cleveland Clinic Journal of Medicine. 1990 June;57(4):318-320 | 10.3949/ccjm.57.4.318
June 1, 1990|Cleveland Clinic Journal of Medicine
Author and Disclosure Information
Eugene S. Hurwitz, MD Centers for Disease Control, Atlanta, Georgia
Edward A. Mortimer, MD Department of Epidemiology and Biostatistics, Case Western Reserve University School of Medicine, 2119 Abington Road, Cleveland, Ohio 44106
