| MeSH Trace | 
			| |  | Anthropology, Education, Sociology and Social Phenomena | 
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			| |  | Social Sciences | 
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			| |  | Government | 
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			| |  | Federal Government | 
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			| |  | United States Government Agencies | 
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			| |  | United States Dept. of Health and Human Services | 
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			| |  | National Institutes of Health (U.S.) | 
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			| |  | National Cancer Institute (U.S.) | 
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