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Number (N) of stroke admissions by stroke type. (A) All admissions from May 2005 to June 2009; (B) May and June admissions for cerebral infarction; (C) May and June admissions for intracerebral hemorrhage; (D) May and June admissions for subarachnoid hemorrhage. The dashed line marks the introduction of the nationwide restaurant smoking ban on 1 June 2007. CI, cerebral infarction; ICH, intracerebral hemorrhage; SAH, subarachnoid hemorrhage. Black bars, May; grey bars, June.
