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Stroke is a group of diseases caused by brain ischemia or bleeding. It is also called cerebrovascular accident, which has very high mortality and morbidity. Stroke is mainly divided into hemorrhagic stroke (intracerebral hemorrhage or subarachnoid hemorrhage) and ischemic stroke (cerebral infarction, cerebral thrombosis), and cerebral infarction is the most common one. Stroke onsets nasty, its case fatality rate is high, and constitutes the most importantly fatal disease in the world. |