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To the Editor:
—In his paper on immunologic observations in autumnal hay-fever (The Journal, May 3), Dr. Harry S. Bernton discusses the Scheppegrell four-group classification of hay-fever pollens as published in the Boston Medical and Surgical Journal, July 12, 1917. This, however, has since been revised, the new classification of three major and five minor groups having been published in the New York Medical Journal and Record, June 20, 1923.In this report, the following statement is made: "While the grouping of hay-fever pollens from a biologic"—and botanic; the ragweeds and artemisias, for instance, both belong to the Compositae family, but are divided into separate groups— "viewpoint has proved of great advantage in simplifying the diagnostic tests and treatment of hay-fever, our experience has demonstrated that the most common member in the patient's vicinity, of the group to which he reacts, should be selected for his immunization."Regarding the ragweed
Scheppegrell W. "IMMUNOLOGIC OBSERVATIONS IN AUTUMNAL HAY-FEVER". JAMA. 1924;82(21):1714. doi:10.1001/jama.1924.02650470054033
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