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Abstract
Mesh: See more » AmericasHistory, 15th CenturyHistory, AncientHumansIndians, Central American/historyIndians, South American/historyMeasles/historyMeasles/prevention & controlVaccination
Year: 1982 PMID: 6184119 PMCID: PMC1500304
Source DB: PubMed Journal: Br Med J (Clin Res Ed) ISSN: 0267-0623