方法： 将120例患者随机分为观察组和对照组。
Method: All 120 cases were randomly allocated into an observation group and control group.
方法选择符合条件的患者200例，分为观察组和对照组。
Methods 200 patients were divided into the observation group and the control group.
方法：随机分组，对比观察组和对照组脑梗死后癫痫发生率。
Methods: The incidence of epilepsy after cerebral infarction was compared between observed group and control group.
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