在参与讨论肉类伦理的学生受试人群中，肉食购买率从52%下降到45%——而且这一影响在研究持续的几周内保持稳定。

Among student subjects who discussed meat ethics, meal purchases containing meat decreased from 52 to 45 percent—and this effect held steady for the study's duration of several weeks.

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研究人员必须获得医院或诊所伦理委员会的批准。

Researchers must obtain approval only from their hospitals or clinic's ethics board.

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