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Date: 2012-08-30 13:53:49United States National Library of Medicine PubMed Central Medical library ClinicalTrials.gov Environmental health Health informatics MedlinePlus Alternative medicine Medical literature retrieval Medicine Health National Institutes of Health | National Library of Medicine - Programs and Services, Fiscal Year FY05Add to Reading ListSource URL: www.nlm.nih.govDownload Document from Source WebsiteFile Size: 2,59 MBShare Document on Facebook |