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Abstract
Mesh: See more » Environmental HealthGovernmentOrganization and AdministrationPopulation ControlScienceSocial ChangeSocial ValuesTechnologyUnited States
Year: 1970 PMID: 5428457 DOI: 10.1038/227437a0
Source DB: PubMed Journal: Nature ISSN: 0028-0836 Impact factor: 49.962