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July 21, 1956


JAMA. 1956;161(12):1182. doi:10.1001/jama.1956.02970120064019

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To the Editor:—  A number of articles have recently been published dealing with the blood grouping of the members of the armed forces as carried out during the war. Comparison of blood grouping results with those recorded on the dog tags revealed a percentage of error close to 10. These errors have been ascribed to technical errors in the performance of the tests, such as too rapid or careless reading of the reactions. The purpose of this letter is to call attention to other important sources of error, as related to me by eyewitnesses.First, an attorney has informed me that, when he was inducted into the Army and was waiting for his examination with hundreds of other soldiers attired in their "altogethers," he observed the process of drawing blood, blood grouping, and stamping of dog tags. He discovered that the process was "off one," and, when he rechecked and

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