新生儿主要死因为羊水吸入，羊水吸入性肺炎、支气管肺炎、先天性畸形、呼吸系统其它疾病及颅内出血等。
The chief causes of newborn death were inspiration of amniotic fluid and amniotic pneumonia, congenital malformation, and other diseases of the respiratory system.
新生儿出血症是凝血因子促凝活性减低，个数减少的出血性疾病。
Therefore, 1. The hemorrhagic disease of the newborn correlation with vigour liver and number decreased of thrombin factor.
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