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Many patients suffer a stroke early after a transient ischemic attack,but the reason why is often unclear.We studied 12 patients with<75%stenosis of the internal carotid artery and a single hemispheric transient ischemic attack lasting<1 hour who had a normal neurologic examination 3-13 hours later and a normal computed tomogram 24-36 hours later.Single-photon emission computed tomography using technetium-99m HM-PAO |
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