National estimates of ambulatory medical care visits with a diagnosis of influenza and the antiviral prescription by demographics in the United States, 2002–2006.
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*Ethnicity missing for 4.7% of sample.†MSA: Metropolitan Statistical Area.‡NA: Not applicable due to the sample size of interest in the surveys was less than 30, as the estimate is considered unreliable under NAMCS and NHAMCS analysis recommendations.
创建时间：
2015-12-02
