http://www.health.gov/NHIC/Pubs/2008clearinghouses/clearinghouses.htm
National Health Information Center, U.S. Department of Health and Human Services
An online listing of Federal clearinghouses that provide health-related information to the general public and to professionals on a wide variety of subjects. This resource includes descriptions, summaries of services, mail and telephone contact information, and Internet resources, where available. The Federal Health Information Centers and Clearinghouses listing is maintained as part of the Health Information Resources database at the National Health Information Center.