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Biographical and contextual information on notable people throughout history

Learn about animals, plants, music science, sports, and more

Overviews, care plans, journal results and diagrams complement encyclopedia text.

Articles on direct patient care, healthcare administration, and more

Continuously updated information and opinions cover hot issues.

Academic articles, videos, experiments, and more

Academic articles, videos, primary documents, and more on topics in U.S. history

Biography

Biographical and contextual information on notable people throughout history

General Reference

Learn about animals, plants, music science, sports, and more

Continuously updated information and opinions cover hot issues.

Health

Overviews, care plans, journal results and diagrams complement encyclopedia text.

Articles on direct patient care, healthcare administration, and more

History

Academic articles, videos, primary documents, and more on topics in U.S. history

Science

Academic articles, videos, experiments, and more

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