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Previous Volume 333:390-391 August 10, 1995 Number 6 Next

	Since this article has no abstract, we have provided an extract of the first 100 words of the full text and any section headings.

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To the Editor: Puleo et al. (Sept. 1 issue)¹ described the use of a rapid test of subforms of creatine kinase MB (CK-MB) to diagnose myocardial infarction earlier than was previously thought to be possible. This report is of obvious importance, since the authors claim a potential reduction of about 70 percent in admissions to coronary care units. The assay is based on measuring the ratio of CK-MB₂ (the subform containing C-terminal lysine) to CK-MB₁ (the des-lysine subform), for which the normal cutoff value is 1.5. CK-MB₂ released from the damaged myocardium is converted to CK-MB₁ in the blood by . . . [Full Text of this Article]

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