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Abstract
Entities: Species
Mesh: See more » Disease OutbreaksHumansLaboratory InfectionLegislation, MedicalLondonSmallpox/prevention & controlVaccination
Year: 1973 PMID: 4700325 PMCID: PMC1589099
Source DB: PubMed Journal: Br Med J ISSN: 0007-1447