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A 70‐year old man with acute vertigo and vomiting arrived ED 2.5 hr after onset and received MRI 28h after onset; his NIHSS was 0 during this time. Cerebral MRI showed left occipital (a) and right cerebellar hemisphere(b) infarction, left vertebral artery was narrow (green arrow) with right vertebral artery stenosis (red arrow, c)
