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Previous Volume 348:1607-1609 April 17, 2003 Number 16 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: We welcome the initiative to redefine transient ischemic attack (TIA), undertaken by the TIA Working Group and described by Albers et al. (Nov. 21 issue).¹ However, the definition proposed is impractical. Clear definitions of disease are needed to guide treatment and to enable researchers to conduct studies using similar patient groups. The authors' proposed definition, by requiring brain imaging, replaces an arbitrary time-based definition with an equally arbitrary resource-based definition. If this definition is implemented, the distinction between stroke and TIA will be dependent on the imaging resources available. The diagnosis will depend on whether computed tomography . . . [Full Text of this Article]

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