虽然数据保护提供了在故障时重新生成数据的能力，但是这并不涉及处于第一位的数据的有效性。

Although data protection provides the ability to regenerate data on a failure, it says nothing about the validity of the data in the first place.

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就像让食品和药物管理局要求药品公司自行测试新药物的安全性和有效性——一位批评者指出。

Or having the Food and drug Administration let drug companies test the safety and efficacy of new drugs, one commenter points out.

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科学家从226位患者的基因信息中进行测试，在640位患者中分析了这项测试，并在周一报告了在其他526名患者中有效性的研究。

Scientists developed it from gene information on 226 patients, analyzed it in 640 patients, and on Monday reported a validation study of it in 526 others.

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