Agency for Health Care Policy Research www.ahcpr.gov - a part of the U.S. Department of Health and Human Services, is the lead agency charged with supporting research designed to improve the quality of health care, reduce its cost, and broaden access to essential services.   Centers for Disease Control and Prevention (CDC) www.cdc.gov - promotes health and quality of life by preventing and controlling disease, injury, and disability.   COLA www.cola.org - a non-profit, physician-directed, national accrediting organization whose purpose is to promote excellence in medicine and patient care through programs of voluntary education, achievement, and accreditation.   Federal Government: U.S. Executive Branch lcweb.loc.gov/global/executive/fed.html - an official Library of Congress Internet resource page.   Federal Government: U.S. Judicial Branch lcweb.loc.gov/global/judiciary.html - an official Library of Congress Internet resource page.   Federal Government: U.S. Legislative Branch lcweb.loc.gov/global/legislative/congress.html - an official Library of Congress Internet resource page.   Food and Drug Administration www.fda.gov - a public health agency, charged with protecting American consumers by enforcing the Federal Food, Drug, and Cosmetic Act and several related public health laws.   Health Care Financing Administration www.hcfa.gov - federal agency that administers the Medicare, Medicaid and Child Health Insurance Programs.   Medicare www.medicare.gov - a federal health insurance program for people age 65 and older.  Web site covers all aspects of Medicare. National Center for Complementary and Alternative Medicine http://altmed.od.nih.gov - conducts and supports basic and applied research and training and disseminates information on complementary and alternative medicine to practitioners and the public.   National Guideline Clearinghouse www.guideline.gov - a public resource for evidence-based clinical practice guidelines.   Thomas www.thomas.loc.gov - Acting under the directive of the leadership of the 104th Congress to make Federal legislative information freely available to the Internet public, a Library of Congress team brought the THOMAS World Wide Web system online in January 1995, at the inception of the 104th Congress.   U.S. Census Bureau www.census.gov - a federal agency that oversees all aspects of collecting and providing timely, relevant, and quality data about the people and economy of the United States.   U.S. Congressional Budget Office www.cbo.gov - provide the Congress with objective, timely, nonpartisan analyses needed for economic and budget decisions and with the information and estimates required for the Congressional budget process.   U.S. Department of Health and Human Services (DHHS) www.os.dhhs.gov - a federal agency for protecting the health of all Americans and providing essential human services, especially for those who are least able to help themselves.   U.S. Department of Labor - (OSHA) www.osha.gov - a federal agency that establishes protective standards, enforces those standards, and reaches out to employers and employees through technical assistance and consultation programs.   U.S. General Accounting Office www.gao.gov - the investigative arm of Congress in charge of examining matters relating to the receipt and disbursement of public funds, GAO performs audits and evaluations of Government programs and activities.   U.S. Government Printing Office www.gpo.gov - agency that informs the Nation by producing, procuring, and disseminating printed and electronic publications of the Congress as well as the executive departments and establishments of the Federal Government.   U.S. National Library of Medicine (NLM) www.nlm.nih.gov - the world's largest biomedical library, every significant program of the NLM is represented.