Study Design. Prospective, randomized, double-blind study.

研究设计：前瞻性、随机化、双盲研究。

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Sheldon:How could there be a double-blind study? Who would be the control group?

怎么可能有双盲研究?谁来当认证结果?。

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The researchers enrolled 105 children, between ages 2 and 18, in their randomized, partially double-blind study.

研究人员纳入了105名儿童（年龄在2至18岁之间）进行随机、部分双盲研究。

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Six years ago I was part of a consulting team that was asked by a major biotech firm to conduct a six-month long double-blind study of its sales force.

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Then, this week, the King Institute of Preventive Medicine, a flagship government hospital in the Tamil Nadu capital of Chennai, announced its intention to do a double-blind study to see how effective the neem-papaya mix is in battling dengue.

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And in a study published last year, researchers in Australia showed in a double-blind, placebo-controlled trial that subjects with suspected gluten sensitivity had substantially fewer symptoms on a gluten-free diet than control subjects who unknowingly ingested gluten.

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