But because you can only test a limited part of all the things we value in school, you tend to make those things very important.

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Winning approval for Glybera proved particularly challenging because the company was only able to test it on 27 patients in clinical trials, due to the rarity of the condition.

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Or, follow Mr. Turk's advice that particularly in cashmere, established brands have the edge, if only because customers have put their product's durability to the test for decades.

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It could be another depressing case of follow-the-leader drug development where drug companies rush to test a similar compounds class because everyone else is doing it, only to find out in the end that none of them work very well.

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Abendanon, who has made only one Test start, could even find himself pushed straight into the team because Josh Lewsey and Mathew Tait, the other full-backs in the squad, have not been playing regularly in the position this season.

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Its only disadvantage is that it makes the disease harder to detect, because vaccinated animals produce similar test results to diseased ones.

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Not only does a tiny test tube require far less fluid, it can also speed reactions, because all the molecules are so much closer to each other.

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