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To the Editor:—
In The Journal, Dec. 29, 1945 I note the communication from Dr. Ralph Luikart in which he states that for almost a year he has instituted the determination of the Rh factor on his obstetric patients and that in the last six months he has been doing so routinely.I wish to state that I have instituted this method in my own office for almost two years and in my service at the Beth-El Hospital for the past year and a half. I brought this to the attention of the Brooklyn Gynecological Society in a paper, "The Rh Factor in Obstetrics," which was published in the Journal of Obstetrics and Gynecology of September 1945. In that paper I called attention to the fact that in certain communities the Rh factor determination is more important in the saving of infant lives than is the Wassermann test. In a
Halperin J. IMPORTANCE OF RH FACTOR. JAMA. 1946;130(7):445. doi:10.1001/jama.1946.02870070065020