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New study shows hundreds of thousands of children tested positive for lead in their blood in recent years

A new study of more than a million children found lead poisoning in about half of those tested. Dr. Jon LaPook joins “CBS Mornings” and explains the negative health effects, and why many children at risk may not be getting tested. Read more about protecting your child from lead poisoning in this tip sheet from Quest Diagnostics, offered in English and in Spanish .
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