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A new study shows that exposure to two specific 'forever chemicals' may accelerate biological aging, especially in middle-aged men. Researchers revealed a link between faster epigenetic aging, and two of these alternatives, PFNA and PFOSA, a precursor of PFOA.
，这一点在safew官方版本下载中也有详细论述
2. 不改变已有字段/接口语义
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