National Institutes of Health
The National Center for Complementary and Alternative Medicine (NCCAM) is the Federal Government’s lead agency for scientific research on complementary and alternative medicine (CAM).
U.S. Department of Health and Human Services
The Department of Health and Human Services (HHS) is the United States government’s principal agency for protecting the health of all Americans and providing essential human services, especially for those who are least able to help themselves.
Centers for Disease Control and Prevention
CDC provides direct access to important health and safety topics, scientific articles, data and statistics, tools and resources.
USA.gov makes it easy for the public to get U.S. government information and services on the web.