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Abstract
Mesh: See more » Africa, WesternCommunicable Disease ControlHumansInternational CooperationMalaria/epidemiologySri LankaYellow Fever/epidemiology
Year: 1970 PMID: 5420201 PMCID: PMC1700481
Source DB: PubMed Journal: Br Med J ISSN: 0007-1447