Maternal smoking increased the risk of miscarriage and premature delivery.

孕妇吸烟增加流产及早产危险。

youdao

Conclusions Premature delivery is the main causes of neonate illness and death.

结论早产是新生儿发病和死亡的主要原因。

youdao

Pregnant women risk dehydration and premature delivery when they have flu, she said.

孕妇在患流感时更容易脱水和早产，她说。

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Women who smoke during pregnancy increase their risk of miscarriage, premature delivery and cot death.

BBC: Helpline for pregnant smokers

With multiple births increasing the risk of premature delivery, the possibility of a caesarean and the chance deformities and disabilities, UK clinics were last year directed not to return more than two embryos to a patient's womb.

BBC: IVF under the microscope

So it is unlikely that the research, published in the journal Neuropsychology, will radically change the way that obstetricians and paediatricians approach delivery of premature babies, and their care in the first hours after birth.

BBC: Brain risk from birth oxygen shortage