In present, tumor is a leading cause of human death in the world.

目前，在世界范围内，肿瘤是导致人类死亡的主要原因之一。

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Cerebral infarction is one of important diseases of human death and disability.

脑梗死是人类死亡和致残的重要疾病之一。

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Cerebral infarction is one of important diseases of human death and disability.

脑梗死是人类死亡和致残的重要疾病之一。

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