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Incidence of hospital admissions and severe outcomes during the first and second waves of pandemic (H1N1) 2009

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Estimating the Burden of 2009 Pandemic Influenza A (H1N1) in the United States (April 2009-April 2010)

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Hospitalization in two waves of pandemic influenza A(H1N1) in England

(2010) C. N. J. CAMPBELL et al.   EPIDEMIOLOGY AND INFECTION

Clinical and Epidemiologic Characteristics of Children Hospitalized With 2009 Pandemic H1N1 Influenza A Infection

(2010) Swati Kumar et al.   PEDIATRIC INFECTIOUS DISEASE JOURNAL

Effective Detection of the 2009 H1N1 Influenza Pandemic in U.S. Veterans Affairs Medical Centers Using a National Electronic Biosurveillance System

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Epidemiologic Observations from Passive and Targeted Surveillance during the First Wave of the 2009 H1N1 Influenza Pandemic in Milwaukee, WI

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