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Definition of Blood Institute, National Heart, Lung, and
Medically reviewed by Dr. Otari Nergadze, Neurosurgeon | Updated: January 2026
Blood Institute, National Heart, Lung, and: One of the National Institutes of Health in the U.S., the NHLBI's mission is to "provide leadership for a national research program in diseases of the heart, blood vessels, lungs, and blood and in transfusion medicine through support of innovative basic, clinical, and population-based and health education research."