This image provided by the Centers for Disease Control and Prevention shows a poster from their anti-smoking advertising campaign, launched on Thursday, March 28, 2013. The ad is part of the second round of a graphic ad campaign designed to get smokers off tobacco. The CDC says they believe the last effort convinced tens of thousands to quit. (AP Photo/CDC)

Associated Press
This image provided by the Centers for Disease Control and Prevention shows a poster from their anti-smoking advertising campaign, launched on Thursday, March 28, 2013. The ad is part of the second round of a graphic ad campaign designed to get smokers off tobacco. The CDC says they believe the last effort convinced tens of thousands to quit. (AP Photo/CDC)
This image provided by the Centers for Disease Control and Prevention shows a poster from their anti-smoking advertising campaign, launched on Thursday, March 28, 2013. The ad is part of the second round of a graphic ad campaign designed to get smokers off tobacco. The CDC says they believe the last effort convinced tens of thousands to quit. (AP Photo/CDC)
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