National Institutes of Health (NIH) - Home Page
An agency of the US Department of Health and Human Services. It is one of the world's foremost medical research centers and the Federal focal point for health research. As the steward of biomedical and behavioral research for the Nation, its mission is science in pursuit of fundamental knowledge about the nature and behavior of living systems and the application of that knowledge to extend healthy life and reduce the burdens of illness and disability. USDHHS. US.