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delivery , production , labour , childbirth , tocus
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。
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