方法对30例无定位体征脑干梗塞患者行头颅MRI及双侧椎动脉超声检查，前者观察其梗塞部位、数量、大小；
Method Skull MRI and bilateral vertebral arteries ultrasound were undertaken in 30 patients with brain stem infarction without located sign.
方法对30例无定位体征脑干梗塞患者行头颅MRI及双侧椎动脉超声检查，前者观察其梗塞部位、数量、大小；
Method Skull MRI and bilateral vertebral arteries ultrasound were undertaken in 30 patients with brain stem infarction without located sign.
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