1. … was(were) purchased/obtained from … ……购自（来自）……

用于说明实验材料及其来源。

例句

Anti-rat IgG subclasses were purchased from Binding Site (Birmingham, UK).

抗大鼠IgG(亚类)购自英国伯明翰Binding Site公司。

2. Inclusion/ Entry criteria were … 入选标准是……

例句:

Inclusion criteria were: randomization of patients with acute coronary syndromes but without persistent ST elevation; comparison of a glycoprotein IIb/IIIa inhibitor with placebo or control therapy; non-recommendation of early coronary revascularization during study-drug infusion; and enrollment of at least 1000 patients.

入选标准是：有急性冠状动脉综合征但无ST段持续升高的病人的随机入组；分为糖蛋白IIb/IIIa抑制剂和安慰剂（或对照疗法）两组；在输入实验药物期间不建议使用早期冠状动脉血运重建术；至少入选1000例病人。

3. …was(were) randomized into … ……被随机分成……

…was(were) randomly divided into … ……被随机分成……

用于描述随机分组这一实验步骤。

例句

Eighty-six patients were randomized into 2 groups.

86名病人被随机分成两组。

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