The two primary causes of death are associated head injury and vascular injuries that cause exsanguination or stroke.

造成死亡的两个最重要的因素是颅脑损伤和动脉损伤造成的失血与休克。

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OBJECTIVE to investigate the occurrence circumstance, occurrence cause and risk factor of injury in primary school students in Hangzhou, and work out the intervention measures of injury.

目的了解杭州市小学生伤害发生情况、发生原因及其危险因素，以制定伤害干预措施。

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