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Minneapolis, Minn., Aug. 6, 1897.
To the Editor:
—Will you please inform me in what number of the Journal, if any, 1 can find an accurate description of the method of making the "diazo-reaction" test in diagnosis of typhoid. If none has been published will you not have space for it? Very truly yours, F. A. Knights, M.D.
—Vide "The Diagnostic Value of Ehrlich's Diazo-reaction," by Charles L. Greene, M.D., University of Minnesota, Journal, Vol. xxii, p. 356, Feb. 24, 1894.
The Diazo-reaction Test.. JAMA. 1897;XXIX(10):499. doi:10.1001/jama.1897.02440360043014