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Abstract
Mesh: See more » AsiaBudgets/trendsEuropeFederal GovernmentResearch/economicsResearch/standardsResearch Support as Topic/economicsResearch Support as Topic/trendsUnited States
Year: 2006 PMID: 16467807 DOI: 10.1038/439646a
Source DB: PubMed Journal: Nature ISSN: 0028-0836 Impact factor: 49.962