The Agency for Healthcare Research and Quality, 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, improve patient safety, decrease medical errors, and broaden access to essential services, are relocating to the John M. Eisenberg Building in Rockville, Maryland, effective June 16, 2003. Contact information for the AHRQ is: www.ahrq.gov ; Public Affairs – 301-427-1360; Main phone number – 301-427-1200; AHRQ Clearinghouse – 1-800-358-9295.