Preventive medicine is to raise the level of public health and prevent and control diseases.

预防医学旨在提高公共卫生健康水平，预防和控制疾病的发生。

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Preventive medicine is to raise the level of public health and prevent and control diseases.

预防医学旨在提高公共卫生健康水平，预防和控制疾病的发生。

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