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To the Editor:
—Dr. M. A. Blankenhorn states in The Journal, Oct. 11, 1930, that the differentiation between painless jaundice due to obstruction and catarrhal or arsphenamine jaundice is often impossible without an operation. I believe that this represents the current view, but those who have had an experience with the galactose tolerance test know better. Richard Bauer published a paper on this simple and reliable test as early as 1906, and the practical value of the test has since been confirmed by Warren R. Sisson, Woerner, and many others (Bauer, Richard: Wein. med. Wchnschr.66:2537, 1906; Wien. Arch. f. inn. Med.6:9, 1923. Sisson, W. R.: A Clinical Study of Two Hepatic Functional Tests, Arch. Int. Med.14:804 [Dec.] 1914. Woerner: Med. Klin., 1919, number 45. Davies, D. T.: Lancet1:380 [Feb. 19] 1927). The galactose test can be carried out by any practitioner and
Loewy FE. A SIMPLE TEST TO DIFFERENTIATE BETWEEN OBSTRUCTIVE AND OTHER TYPES OF JAUNDICE. JAMA. 1931;96(6):459. doi:10.1001/jama.1931.02720320059024
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