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In the last paragraph of a Query and Minor Note entitled "Spasmosedine, Cortiode and Eutonon" in The Journal, May 14, is a statement that "Eutonon" is a liver extract. Dr. George Zuelzer of New York writes that the product Eutonon is a heart hormone and not a liver extract.
Eutonon. JAMA. 1938;111(4):331. doi:10.1001/jama.1938.02790300041015