一胎于妊娠12～34周死亡者或单卵双胎者，其存活胎婴儿病率增加。
The morbidity of the living fetus was markedly increased in single fetal in 12~34weeks or those in monozygotic twins.
一胎于妊娠12～34周死亡者或单卵双胎者，其存活胎婴儿病率增加。
The morbidity of the living fetus was markedly increased in single fetal in 12~34weeks or those in monozygotic twins.
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