Instituições Governamentais

Center for Disease Control
Center for Education and Drug Abuse Research
Food and Drug Asministration
Healthfinder - Guide to health information
National Heart, Lung, and Blood Institute
National Institute on Drug Abuse
National Institute of Allergy and Infectious Diseases
National Institute of Diabetes, Digestive and Kidney Diseases
National Institutes of Health
National Institute of Neurological Disorders and Stroke
Pan American Health Organization - Homepage
World Health Organization