A number of new medicines have already undergone trials across Asia.

一批新药已在亚洲各地接受试验。

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Hundreds of people have undergone brain surgery for psychiatric problems, most in experimental trials, with some encouraging results.

现已有数百人因精神疾病进行过脑外科手术，大多数手术是临术实验性的，但已取得一些令人鼓舞的成果。

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The new drug has undergone extensive medical trials.

这种新药已被用于大量的医学试验。

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These substances are behind Carraguard in the development pipeline, though both have undergone small-scale trials.

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Olestra is the most tested food substance in history, having undergone more animal studies and human clinical trials than most prescription drugs.

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