CDC STACKS serves as an archival repository of CDC-published products including scientific findings, journal articles, guidelines, recommendations, or other public health information authored or co-authored by CDC or funded partners.
As a repository, CDC STACKS retains documents in their original published format to ensure public access to scientific information.
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Table HA. Weighted (base weight) Frequency Listings for Questions on Symptoms of a Heart Attack: NHIS, 2001 and 2008 (Q1-Q3)
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Jan. 24, 2013