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American National Standards Institute
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Agency for Toxic Substances and Disease Registry
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Safety, Health and Working Conditions
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Centers for Disease Control and Prevention
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Wonder System online database
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Department of Transportation
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Environmental Protection Agency
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Food and Drug Administration
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Federal Emergency Management Agency
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Environment, Health & Safety Division
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Mine Safety and Health Administration
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National Institute for Occupational Safety and Health
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National Institute of Environmental Health Standards
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National Institutes of Health
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National Library of Medicine
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National Oceanic and Atmospheric Administration
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Nuclear Regulatory Commission
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Occupational Safety and Health Administration
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Technical Information Services (TIS)
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U.S.Dept. of Health & Human Services
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Code of Federal Regulations
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Ergonomics
