早产性胎膜早破 PPROM ; premature preterm rupture of membranes
早产性贫血 Anemia of prematurity
医源性早产 iatrogenic proterm labor
早产儿慢性肺疾病 chronic lung disease ; CLD
习惯性早产 habitual premature labor
早产儿代谢性骨病 MBDP
周胎膜早破性早产 preterm premature rupture of membrane ; PPROM
早产儿原发性呼吸暂停 apnea of premature ; AOP
早期丰产性 early fertile capability
早产婴儿虽然能在怀孕22周时存活，但是危险性极高。
Premature babies can survive from as early as 22 weeks' gestation, but they are on the border of viability.
但争论的焦点在于如何从时间上界定早产儿，以及早产儿降生后成活的可能性。
But the debate centred on how premature a baby can be and have a reasonable prospect of surviving.
有严重清晨恶心呕吐现象的孕妇有比普通孕妇多三倍的可能性早产，她们的婴儿出现体重过轻现象的可能也增加了近三倍。
Women who suffered from extreme early morning sickness were three times more likely to give birth prematurely and the baby was nearly three times more likely to be of low weight.
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