Bibliographical noteFunding Information:
From the Departments of Laboratory Medicine and Pathology and Pediatrics, University of Minnesota Medical School, Minneapolis, M~. P.F. was supported in part by Research Contract NO1 AI25152 from the National Institute of Allergy and I@ctious Diseases, National Institutes of Health, Bethesda, MD. Address correspondence to Patricia Ferrieri, MD, University of Minnesota Hospital, Box 134 Mayo Bldg, 420 Delaware St SE, Minneapolis, MN 55455. Copyright 9 1997 by W.B. Saunders Company 1045-1870/97/0802-000955.00/0
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