The researchers then studied those patients' brain activity and bodily sensations over the course of a year, comparing what they found with the results from a group of amputees treated with a placebo.

然后研究人员在一年中连续观察这些病人的脑活动和肢体感觉，并与一组服用安慰剂的病人的检查结果相对照。

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By the end of the trial, almost twice as many patients treated with placebo showed adequate relief of symptoms compared with the control group.

而在实验结束时，在服用安慰剂的那组病人中，症状得到充分缓解的人数与对照组相比几乎达到两倍之多。

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Patients in the control group were treated with low molecular dextran and placebo (made with starch).

对照组静点低分子右旋糖苷，口服安慰剂胶囊(淀粉)。

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Compared with the group taking placebo, memantine-treated patients had less deterioration in mental function over the 28 weeks.

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The researchers found that the illness cleared up after an average of 31 hours in those treated with nitazoxanide, compared to an average of 75 hours for the placebo group.

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