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Find sites about National Institutes of Health (NIH), the primary agency of the U.S. Department of Health and Human Services and its network of institutes dedicated to biomedical and health sciences including cancer, heart and lung diseases, environmental health, allergy and infectious diseases, dental sciences, and genetic studies.
Read about American Heart Association (AHA), the U.S. national voluntary health agency dedicated to reduce the effects of cardiovascular diseases and stroke. Sites include organization information, heart care programs, education and research studies, as well as state affiliates and city chapters.