缺血性中风是血管阻塞从而使目标器官有细胞死亡的风险而引起的。

Ischemic stroke is caused by clogged blood vessels, thereby putting target organs at risk of cellular death.

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提出每种方法的利弊，介绍在试管内替换测验象细胞方法那样适合厉害的系统的毒性，目标器官和地方的毒性。

Presenting the advantages and disadvantages of each method, it introduces in vitro alternative testing such as cellular methods for acute systemic toxicity, target organ, and local toxicity.

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他们的目标是使人体错误的认为外来的器官就是自身的，这样就阻止了免疫系统对外来者的排斥。

Their goal has been to trick the body into thinking that a foreign organ is really a native one, so that its immune system refrains from rejecting the foreigner.

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