FDA can ask for the proof of safety and effectiveness of a product if its distributors challenge FDA's authority.

如果经销商对FDA的权威提出质疑，FDA可以要求他们提供产品安全性和有效性的证明。

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By offering the product with the right combination of the four Ps marketers can improve their results and marketing effectiveness.

通过提供四个P搭配的很好的产品，市场人员可以得到很好的结果和市场营销效率。

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The safety and effectiveness of the active ingredient in this product have not been demonstrated to the FDA.

FDA法规事务代理副专员迈克尔 夏贝尔说：“该产品活性成分的安全性、有效性未向FDA提出。

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Great sales executives understand that to increase the productivity of their sales people they need to continually invest in both product and sales effectiveness training.

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The company's website says the product provides "continuous effectiveness" when applied every two to four hours along with handwashing.

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"You can have all the theories you want but until you actually have some evidence of benefit in people, you don't have evidence of effectiveness of the product, " says the Alzheimer's Association's Dr. Thies.

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