Centers for Disease Control
The CDC is one of the 13 major operating components of the Department of Health and Human Services, the principal agency in the United States government for protecting the health and safety of all Americans.

National Institutes of Health
The National Institutes of Health is one of the world's foremost medical research centers and the Federal focal point for medical research in the United States.

The Merck Manual
Merck devotes extensive efforts to increase access to medicines through far-reaching programs that not only donate Merck medicines but help deliver them to the people who need them.

WebMD
WebMD provides valuable health information, tools for managing your health, and support to those who seek information.

New England Journal of Medicine
The New England Journal of Medicine (NEJM) is a weekly general medical journal that publishes new medical research findings, review articles, and editorial opinion on a wide variety of topics of importance to biomedical science and clinical practice.

American College of Emergency Physicians
ACEP supports quality emergency care and promotes the interests of emergency physicians.

DrugWatch.com
DrugWatch.com is a comprehensive Web site database featuring up-to-date information about prescription and over-the-counter medications and includes details about associated side effects to aid in the protection of patients and consumers.