英语语法分析

The hemoglobin and hematocrit levels were recorded preoperatively and five days postoperatively for each patient.

每名患者术前的血红蛋白和红血球压积以及相应术后五天的结果都被记录在案。

Methods:To analyze retrospectively 33 cases with adrenal malignant tumor examined preoperatively by B mode ultrasound.

方法：回顾性分析术前作过B超检查的肾上腺恶性肿瘤33例。

Results Find thyroid fine needle aspiration is the best method for distinguish malignant or benign nodules preoperatively.

结果发现甲状腺针吸细胞学检查是术前诊断甲状腺结节良恶性的最好方法。