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Abstract
Mesh: See more » Centers for Disease Control and Prevention, U.S.Disease OutbreaksHumansInfluenza A Virus, H1N1 Subtype/physiologyInfluenza, Human/epidemiologyUnited StatesWorld Health Organization
Year: 2009 PMID: 19424108 DOI: 10.1038/459009a
Source DB: PubMed Journal: Nature ISSN: 0028-0836 Impact factor: 49.962