Breastfeeding may increase the risk of early puberty if the mother has been exposed to PBBs or high levels of DDT, because both can pass to the infant through breast milk.
如果母亲摄入过量的PBB或者DDT，母乳喂养可能会增加青春期早发的概率，这些化学合成物都可以通过母乳传递给婴儿。
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