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1·So we have several controlled studies with contradictory results.

因此，我们的对照研究给出了矛盾的结果。

2·But no rigorously controlled studies have confirmed these effects.

不过以上效应还未经严格控制的研究加以证实。

3·Level III are retrospective comparative studies or case-controlled studies.

II I级研究是回顾性的比较研究或者病例对照研究。

4·Large sample, prospective, randomized controlled studies on treatment are scarce.

在治疗上还缺少大样本、前瞻性随机对照性研究。

5·The medical community and patients anxiously await the results of these and other well controlled studies.

无论是医学界还是患者，目前都热切期待着上述以及其他完善对照项目的结果。

6·Two randomized controlled studies show that defibrillators do not benefit patients who just had a heart attack.

两组随机的受控对照研究表明，除颤器不能为刚好心脏病发作的患者带来好处。

7·Adequate, well-controlled studies in pregnant women have not shown an increased risk of fetal abnormalities.

对妊娠妇女群体进行了充分、严格的对照研究，没有发现胎儿畸形的危险性增加。

8·Or no animal studies have been conducted and there are no adequate and well-controlled studies in pregnant women.

或者，没有在动物中进行实验，也没有对妊娠妇女进行充分、严格的对照研究。

9·So we have several controlled studies with contradictory results. Which is the right approach? To license? Or to control?

因此，我们的对照研究给出了矛盾的结果。哪个是正确的做法？授权？还是控制？

10·The guidelines suggest using treatments that are based on results of controlled studies supported by established scientific organizations.

指南建议使用那些基于对照性研究获得的研究结果，并有确定的科学组织支持的治疗方法。