... negative peak 负峰值反峰... negative phase 阴性期(血免疫反应)... negative phase sequence 负相序...
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阴性预期值 negative predictive value ; NPV
和阴性预期值 negative predictive value ; NPV
后肌红蛋白阴性预期值 negative predicative value ; NPV
结论：脑梗死的CT检出与发病时间相关； 脑梗死的病理改变及CT表现分为四期：急性期- CT阴性期；
There exist four phases of pathology and CT manifestations of cerebral infarction: acute phase-CT negative;
缓解期MRD持续阳性或由阴性转为阳性者，骨髓复发的相对危险度明显增高（P< 0 .0 5 ）。
The cases whose MRD was persistently positive or changed from negative to positive during CR had a higher relative risk for relapse (P< 0.05 ).
急性淋巴细胞白血病（ALL）不同病期患者组的p16蛋白表达值，均为阴性表达；
The value of P16 protein of simple anemia patients is positive, while the P16 protein of ALL patients in different stages is all negative;
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