The study also found 62% of patients who didn't receive pills reported headaches compared with less than 50% of patients in the other three treatment groups.

这项研究还发现，没有服用药片的病人中，62%有头疼症状，与之相比，得到治疗的其他三组中，只有不到50%的病人有头疼症状。

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No significant difference in OS between the treatment groups was noted.

两治疗组间的OS没有明显差异。

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Cardiac Index was increased in treatment groups than that in controls(P<0.05);

心搏指数与对照组比较有所增加（P<0.05）；

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Then both groups received radiation treatment and chemotherapy drugs.

VOA: special.2011.03.23

International health groups say earlier treatment can lengthen the lives of HIV sufferers.

VOA: standard.2009.12.02

"What we found is that women who received the acupuncture for depression had a greater reduction in symptom severity and a greater proportion of women have responded to treatment than the control groups."

VOA: standard.2010.03.03

Another important element of a high-quality RCT is the random assignment of patients to treatment groups.

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Some 75% of patients in all treatment groups had to be switched from one drug to another.

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By randomizing patients, almost all factors (known or unknown) that might influence the outcome are present in equal proportions in the various treatment groups.

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