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Abstract
Entities: Species
Mesh: See more » Antigens, Viral/analysisDisease OutbreaksHumansInfluenza A virus/immunologyInfluenza B virus/immunologyInfluenza Vaccines/standardsInfluenza, Human/epidemiology
Substances: See more » Antigens, ViralInfluenza Vaccines
Year: 1991 PMID: 2018726
Source DB: PubMed Journal: Wkly Epidemiol Rec ISSN: 0049-8114