设计：前瞻性的随机临床试验。
本研究是一项单中心随机临床试验。
Patients and methods: The study was a single-center randomized clinical trial.
尽管许多研究都已经表明，但还缺少随机临床试验的佐证。
Although numerous studies have been promising, there are scant data from randomized clinical trials.
研究者正在计划更大的针对肝癌患者的随机临床试验。
Researchers are currently planning a larger randomized clinical trial for patients with liver cancer.
但一直缺乏关于前哨淋巴结转移随机临床试验的前瞻性数据。
Prospective data on clinical outcomes from randomized trials according to sentinel-node involvement have been lacking.
一旦随机临床试验最终结束，也许结果巧克力根本不会产生很多心脏的益处。
Once randomized clinical trials are finally completed, it may turn out that chocolate does not actually produce much of a cardiac benefit after all.
方法：对53个连续收治要求痔切除术的患者进行随机临床试验。
METHODS: A randomized clinical trial of 53 consecutive patients requiring elective haemorrhoidectomy was carried out.
但是目前尚没有前瞻性的随机临床试验来建立最佳的保守治疗方案。
There are, however, no prospective, randomized clinical trials establishing an optimal nonoperative treatment protocol.
方法：一项包括146例亚急性非特异性颈痛患者的随机临床试验。
Methods. A randomized clinical trial was conducted, involving 146 patients with subacute nonspecific neck pain.
导致观察性研究和大规模随机临床试验结果之间不一致的可能原因有多种。
There are multiple possible reasons for discrepant results between observational studies and large randomized trials.
这项对随机临床试验荟萃分析的目的是评价罗格列酮对肿瘤发生率的影响。
The aim of this meta-analysis of randomized clinical trials is to assess the effect of rosiglitazone on the incidence of cancer.
一项随机临床试验，以评估对非痴呆帕金森病患者抑郁症状的影响雷沙吉兰。
A randomized clinical trial to evaluate the effects of rasagiline on depressive symptoms in non-demented Parkinson's disease patients.
现有的研究包括29个队列研究，69个病例对照研究以及4个随机临床试验。
Of the available studies, 29 were cohort studies, 69 case-control studies, and 4 randomized clinical trials.
在进行性核上性麻痹者中进行平衡和眼球运动训练以改善步态：半随机临床试验。
Balance and eye movement training to improve gait in people with progressive supranuclear palsy: quasi-randomized clinical trial.
危重症患者的最佳热量需求尚不清楚，因为缺乏来自严谨的随机临床试验的数据。
Optimal caloric requirements in critically ill patients are unknown owing to the lack of data from rigorous randomized clinical trials.
方法采用前瞻性的随机临床试验的流行病学方法，从用药成本和效果进行分析比较。
Methods: the perspective method of epidemiology, which carries on clinical experiments at random, is adopted and comparisons are made from the perspective of the costs and effects of the drugs.
上述治疗指南仅仅基于来自随机临床试验的数据，这被认为是指导用药的黄金标准。
The recommendations were based only on data from randomized clinical trials, considered the gold standard in guiding the use of drugs.
而随机临床试验已经显示，摄入欧米茄3不饱和脂肪酸能减少患致命的心脏病和心血管病的几率。
And random clinical trials have shown that consuming omega-3 fatty acids can reduce heart attacks and cardiovascular death.
观测研究常常会误导。一旦随机临床试验最终结束，也许结果巧克力根本不会产生很多心脏的益处。
Observational studies are often misleading. Once randomized clinical trials are finally completed, it may turn out that chocolate does not actually produce much of a cardiac benefit after all.
而叶酸单用或联合B族维生素对患癌风险影响的随机临床试验确是有限的，而且相互矛盾。
However, randomized trials testing how folic acid alone or with B vitamins impacts cancer risk are limited and inconsistent.
凡探索灰色文献对随机临床试验统合分析结果之影响的相关研究，收集并进行系统性的回顾。
To review systematically research studies, which have investigated the impact of grey literature in meta-analyses of randomized trials of health care interventions.
长效注射利培酮治疗精神分裂症近期首发精神分裂症后复发的预防和控制：一项随机临床试验。
Long-Acting Injectable Risperidone for Relapse Prevention and Control of Breakthrough Symptoms After a Recent First Episode of Schizophrenia: a Randomized Clinical Trial.
我们设计了随机临床试验，比较研究对此类病人采用放疗加支持疗法与单独采用支持疗法的区别。
We conducted a randomized trial that compared radiotherapy and supportive care with supportive care alone in such patients.
有一个随机临床试验，其中有47个人使用了无效对照剂，一般是常见的非类固醇抗炎药，或者常见的麻醉剂。
In a randomized clinical trial, 47 subjects were assigned to a placebo, a topical nonsteroidal anti-inflammatory agent, or a topical anesthetic.
方法：本随机临床试验主要用于下呼吸道感染、复杂尿路感染、创伤烧伤后感染及腹腔感染、败血症。
METHODS: a randomized controlled clinical trial was conducted for the treatment of hospitalized patients with low-respiratory tract infection, urinary tract infection and after-hurt infection.
需要实施更多的单独使用肝脏切除比照肝脏切除合并化疗栓塞或核子医学治疗一起使用的随机临床试验。
Further randomised clinical trials comparing liver resection alone or in combination with chemoembolisation or radionuclide therapy are needed.
专家组的决定立足于一项历时5年，随访时间为12个月，包含149例肥胖患者的无对照非随机临床试验。
The Panel's decision was based on 12-month data from a 5-year, single-arm, non-randomized trial involving 149 obese individuals.
PIVENS项目是迄今为止采用以安慰剂为对照组，对NASH的疗法进行研究的，最大的随机临床试验。
PIVENS is the largest placebo-controlled, randomized clinical trial of therapies ever conducted for NASH.
答：褪黑素的效果已在被视为医学金标准的随机临床试验中得到证实，但它可能对某些特定种类的睡眠问题尤其有效。
Answer: Melatonin has been shown to be effective in randomized clinical trials - the kind considered the gold standard in medicine - but it may work better for some sleep problems than others.
认为酒精有益的许多研究结果都是从长期观察的测试者身上得来，并不是随机临床试验的方式，相比起来后者更为可信。
Much of the research on alcohol's benefit comes from studies that observe people over time rather than from controlled clinical trials, which are more reliable.
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