妊娠41周虽然不是过期妊娠，但妊娠41周后分娩较足月分娩的围产儿死亡率明显增加。
Even 41 weeks gestation is not pregnancy prolongation, but the perinatal mortality rate of is higher in partus after 41 weeks gestation than in due partus.
妊娠周虽然不是过期妊娠，但妊娠周后分娩较足月分娩的围产儿死亡率明显增加。
Even weeks gestation is not pregnancy prolongation, but the perinatal mortality rate of is higher in partus after weeks gestation than in due partus.
妊娠周虽然不是过期妊娠，但妊娠周后分娩较足月分娩的围产儿死亡率明显增加。
Even weeks gestation is not pregnancy prolongation, but the perinatal mortality rate of is higher in partus after weeks gestation than in due partus.
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