Banned PCB chemicals linked to cognitive problems in seniors

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Banned PCB chemicals linked to cognitive problems in seniors

by CBSTV Videos 1:10 mins

Banned PCB chemicals linked to cognitive problems in seniors

by CBSTV Videos 1:10 mins

Daily health headlines: New concerns over a common drug given to pregnant women, a chemical outlawed for nearly 20 years may still pose health risks, plus more top stories.

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