词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 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。
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