ROBERT R. FENICHEL, PH.D., M.D.
To the Editor:
Orlando and associates, in "Effect of Ethanol on Angina Pectoris" (Ann Intern Med 84:652-655, 1976), appear to believe that 100-proof vodka is 100% ethanol. It is not. One hundred proof was originally that concentration of ethanol that, when mixed with gunpowder and ignited, would burn rather than explode or fizzle. Proof is now defined more simply: X% ethanol is 2X proof.
Throughout their paper, Orlando and associates assert that their subjects consumed 2 or 5 ounces of ethanol on various occasions, and they further assert that these are quantities within the ordinary range of social drinking. While
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FENICHEL RR. Ethanol and Angina Pectoris. Ann Intern Med. 1976;85:394–395. doi: 10.7326/0003-4819-85-3-394
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Published: Ann Intern Med. 1976;85(3):394-395.
Cardiology, Coronary Heart Disease.
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