The Catalog of FDA Approved Drug Products provides information on drugs approved and tentatively approved prescription, over-the-counter, and discontinued drugs. The catalog allows users to browse by drug name, quick...
This site is from the USGS. The natural processes of ground-water and surface-water interactions are completely evaluated and diagrammed for easy understanding that includes the interaction of ground water with lakes,...
Frontiers of Engineering: Reports on Leading-Edge Engineering from the 2002 NAE Symposium on Frontiers
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