Various forms may be employed for the study design of this phase in accordance with the specific study purpose, including randomized controlled clinical trial.

此阶段的研究设计可以根据具体的研究目的，采用多种形式，包括随机盲法对照临床试验。

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Abstract :A randomized controlled clinical trial was conducted for hypotension, 57 cases treated with Sheng Ya Capsule for 3 weeks and 30 cases with Bu Zhong Yi Qi Pill as control.

摘要：应用随机法观察中成药升压胶囊治疗低血压症57例的疗效，并与30例补中益气丸组对照，疗程3周。

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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.

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。

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But a related Abbott drug, TriCor, failed to prove its benefits in a large randomized controlled clinical trial.

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More substantial and convincing support for such a recommendation to eat cherries as a way to reduce gout flares would ideally emerge from a randomized controlled clinical trial.

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For one, the groups noted the analysis is a retrospective study, not a prospective, randomized controlled clinical trial, which many regard as a gold standard for ferreting out safety concerns.

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