各阶段死产和早期新生儿死亡比率呈逐阶段性下降。
The ratio of the stillbirth and the early neonatal death DE creased one stage by one stage.
各阶段死产和早期新生儿死亡比率呈逐阶段性下降。
The ratio of the stillbirth and the early neonatal death de crea…
使用多变量cox比例风险模型来确定与早期新生儿死亡相关的因素。
Multivariate Cox proportional hazards models were used to identify factors linked to early neonatal death.
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