高危因素分别为低出生体重、小孕周、长期或高浓度氧疗以及早期严重贫血。
The high risk factors were low birth weight, small gestational age, long term oxygen therapy and early severe anemia.
高危因素分别为低出生体重、小孕周、长期或高浓度氧疗以及早期严重贫血。
The high risk factors were low birth weight, small gestational age, long term oxygen therapy and early severe anemia.
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