was to asses the diagnostic validity of weighted blood loss<br>方法 (WBL) versus quantied blood loss。 参考标准 was hemoglobin (Hb)<br>drop, which is usual means measuring blood loss accurately and indirectly, with direct<br>利尼纳尔·雷维斯·托·里斯克·马约卡迪亚·infarction[16]。 We considered a dichotomous outcome<br>Hb drop of = 10% a 可恢复的 definition PPH as previously used ...
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