National Library of Medicine
The world's largest medical library. It collects materials in all major areas of the health sciences and to a lesser degree in such areas as chemistry, physics, botany and zoology. http://www.nlm.nih.gov/
Food and Drug Administration
The Consumer Protection Agency of the U.S. Government which monitors medical devices, foods, drugs, biologics, veterinary medicine, and toxicological research. http://www.fda.gov
