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Profiles physical and psychological disorders, diseases, and conditions for the layperson, including causes, symptoms, treatment, therapy, and prospects.
Political reference suite of online encyclopedias, guides, handbooks, and other sources on U.S. government and politics, with some international sources.
Extensive compilation of introductory commentary and criticism on literature from the classical to contemporary era, including poetry and short stories.
Encyclopedias, dictionaries, handbooks, and biographical sources for politics, political systems, governments, economies, countries, and regions of the world.
