Two years ago, Dr. Leifert led a similar review for fruits and vegetables that found organic produce had higher levels of some antioxidants and less pesticide residue than conventionally grown crops.

两年前，莱费特博士领导了一项关于水果和蔬菜的类似综述，发现与用常规方法种植的作物相比，有机农产品中某些抗氧化剂的水平较高，农药残留较少。

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