目的观察窒息新生儿心脏收缩时间间期（STI）的变化，探讨其与临床表现及预后的关系。
ObjectiveTo observe changes of systolic time interval(STI) after neonatal asphyxia and explore its relationship with clinical manifestation and prognosis.
目的观察窒息新生儿心脏收缩时间间期（STI）的变化，探讨其与临床表现及预后的关系。
ObjectiveTo observe changes of systolic time interval(STI) after neonatal asphyxia and explore its relationship with clinical manifestation and prognosis.
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