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Abstract
Mesh: See more » Centers for Disease Control and Prevention, U.S.Communicable Disease Control/organization & administrationComputer Communication NetworksEuropean UnionGovernment AgenciesHealth Services Needs and DemandHumansInternational CooperationUnited States
Year: 1998 PMID: 9788447
Source DB: PubMed Journal: Lancet ISSN: 0140-6736 Impact factor: 79.321