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Medical Definition of Trail making test
1. The subject's ability to connect 25 numbered and lettered circles in sequence in a specific length of time. A score of 12 or below is suggestive of organic brain damage. (12 Dec 1998)
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1. The subject's ability to connect 25 numbered and lettered circles in sequence in a specific length of time. A score of 12 or below is suggestive of organic brain damage. (12 Dec 1998)