No abstract available
Publication types
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Letter
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Research Support, Non-U.S. Gov't
MeSH terms
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Aged
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Angiography, Digital Subtraction*
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Cerebrovascular Circulation / physiology*
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Collateral Circulation / physiology*
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Female
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Humans
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Imaging, Three-Dimensional*
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Ischemic Attack, Transient / diagnostic imaging*
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Magnetic Resonance Imaging
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Male
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Middle Aged
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Retrospective Studies
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Spin Labels
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Statistics as Topic
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Stroke / diagnostic imaging*