取过滤前后血液标本进行血液质量检测，并观察临床非溶血性输血反应发生率降低的程度。

Samples before and after filtration were undergone blood quality detection and then observed the extent it reduced the incidence of clinical non-hemolytic transfusion reactions.

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结论使用国产滤器能去除血液成分中99%以上的白细胞，能有效地预防非溶血性发热性输血反应。

Conclusion Domestic filter can filtrate about 99% leucocytes from SAGM RBCs and the filtration may effectively prevent non hemolytic febrile transfusion reactions.

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目的：观察流感流行期与非流行期医院候诊室空气中溶血性链球菌（HS）的变化。

Objective:To explore the changes of hemolytics streptococcus(HS) in epidemic and un-epidemic of influenza(Flu) in air of waiting room of hospital.

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