ATLANTA (Reuters) - The U.S. Centers for Disease Control and Prevention cut its threshold level for defining lead poisoning in children to 5 micrograms per deciliter on Wednesday from 10, marking the first such reduction in 20 years.
Source: http://feeds.reuters.com/~r/reuters/healthNews/~3/Pb5XA8Z93Bs/us-usa-health-lead-idUSBRE84G06C20120517
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