S. L. ZIMMERMAN, M.D., F.A.C.P.; EDWARD F. ENGEL, M.D.; BERNARD LAPIDUS, M.D.; EDWARD A. BRADLEY, M.D.; HUBERT CLAYTOR, M.D.
It appeared of great interest to the medical staff at this hospital to analyze critically the results of treatment of upper gastrointestinal bleeding. Accordingly, all such admissions between 1947 and June, 1953, were reviewed and subjected to critical analysis. It was at once apparent that certain arbitrary standards would be necessary for such analysis, and it was accordingly decided to include all admissions with upper gastrointestinal bleeding whose red blood count was less than 3.5 million, or whose hemoglobin was less than 10 gm. at the onset of therapy, or at any time subsequent to the initiation of therapy. Because
ZIMMERMAN SL, ENGEL EF, LAPIDUS B, et al. AN ANALYSIS OF 200 ADMISSIONS FOR MASSIVE UPPER GASTROINTESTINAL BLEEDING1. Ann Intern Med. 1956;45:653–661. doi: 10.7326/0003-4819-45-4-653
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Published: Ann Intern Med. 1956;45(4):653-661.
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