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—In the article by Dr. J. I. Margolis on this subject in The Journal, July 20, chart 1, page 173, the following change should be made: The second apex of the nitrogen curve (Feb. 20) has A 1.3 indicated above it. The A 1.3 should be transferred to the second apex of the pentose curve (Feb. 18).
Chronic Pentosuria and Migraine.. JAMA. 1929;93(5):391. doi:10.1001/jama.1929.02710050045022