(Q58647384)
Statements
'Did you have flu last week?’ A telephone survey to estimate a point prevalence of influenza in the Swedish population (English)
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'Did you have flu last week?' A telephone survey to estimate a point prevalence of influenza in the Swedish population (English)
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1 December 2005
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December 2005
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10
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12
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5-6
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1 December 2005
1 reference