词Traditionally, doctors use gestational age, the number of weeks from fertilization to birth, to determine whether a preemie should receive invasive care.
传统上，医生们用孕龄，受精到出生的周数来决定极早产儿是否接受进一步的关注。
Traditionally, doctors use gestational age, the number of weeks from fertilization to birth, to determine whether a preemie should receive invasive care.
传统上，医生们用孕龄，受精到出生的周数来决定极早产儿是否接受进一步的关注。
The mortality rate of premature infants had close relation with gestational age, birth weight and sclerema neonatorum.
早产儿死
率与孕周、体重密切相关，并发硬肿症者死率更高。
The proliferative phase of the oogonium was found in the gestational age between 41d and 84d.
卵原细胞增殖期为41-84天胎龄间，而增殖高峰在41-48天间出
。
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