This website provides links to medical pictures.

This free site provides information about a wide range of health topics to practitioners and the public.

Source for prescription drug information. Includes an A-Z list of drugs, as well as a visual pill identifier

Free online access to books and manuscripts in health and life sciences.

Free resource; requires registration.

A relational database of hazardous chemicals and occupational diseases.

A reference that includes plant images, pictures of affected animals and presentations concerning the botany, chemistry, toxicology, diagnosis and prevention of poisoning of animals by plants and other natural flora.