Past researches agreed that this kind of positive regard should be the outcome of a comparison with a contextually relevant out-group, which was called in-group favoritism.

以往的研究一致认为这种积极评价是与外群比较的结果，并将这种现象命名为内群偏爱。

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Results From comparison of the two therapy group, it turned out that semiconductor laser therapy can promote the nerve regeneration.

结果半导体激光照射治疗可以加速神经的再生，与无治疗组相比有统计学意义。

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Methods a comparison was carried out between the airtight transfusion system without needle and the traditional intravenous injection group.

方法采用可来福接头无针密闭输液系统和常规注射法进行对比研究。

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Last month, UnitedHealth Group bought Humedica, which aggregates information on large patient populations for comparison purposes, and ferrets out at-risk patients.

FORBES: Making Electronic Health Records More Efficient