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1 From the Department of Radiology, Cincinnati General Hospital, College of Medicine, University of Cincinnati
We have described a simple, rapid, and reproducible method for performing subtraction. The subtraction films which result are of uniformly diagnostic quality. We
[See figure in the PDF file]
have eliminated the complicated developing methods, critical exposure times and the trial-and-error aspects of the technique which have previously deterred the widespread use of subtraction. Our technique
[See figure in the PDF file]
has yielded diagnostic results from otherwise equivocal or nondiagnostic films.
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