Objective Analysis the characteristics of serious traffic trauma death cases and Causes of death.

目的分析严重交通伤死亡病例的特点及死亡原因。

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Objective To analysis the trend of maternal death time and explore the impact of the variety of death causes and birth place to maternal death time.

目的 分析北京市孕产妇死亡时间变化趋势及孕产妇死亡原因、分娩地点等因素对孕产妇死亡时间的影响。

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The death analysis showed mortality of the critical child patients with respiratory tract infection or complication of respiratory tract infection (evitable causes) reduced significantly (54.9%).

死亡分析，可避免死因中以呼吸道感染或合并呼吸道感染的危重儿死亡减少明显(达5 4 . 9%)。

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