Title from title screen (viewed on Apr. 28, 2004)., "January 1999.", and "The full evidence report from which this summary was taken was prepared for the Agency for Health Care Policy and Research by the Research Triangle Institute (RTI) and the University of North Carolina (UNC) at Chapel Hill under contract No. 290-97-0011."
Mode of access: Internet from the AHCPR and web site. Address as of 4/28/04: http://www.ahcpr.gov/clinic/epcsums/alcosumm.htm; current access available via PURL.