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am cohen explains hpv vaccine_00025628
am cohen explains hpv vaccine_00025628

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    The science behind HPV vaccine

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The science behind HPV vaccine

Elizabeth Cohen explains the science behind the HPV vaccine, a topic that tripped up Rick Perry at the Tea Party debate.

The science behind HPV vaccine

Elizabeth Cohen explains the science behind the HPV vaccine, a topic that tripped up Rick Perry at the Tea Party debate.