Mode of access: Internet from the AHRQ web site. Address as of 6/27/06: http://www.ahrq.gov/downloads/pub/evidence/pdf/physserv/physserv.pdf; current access available via PURL.
Note
Title from title screen (viewed on June 27, 2006).
"October 2003."
Bibliography
Includes bibliographical references (pages 73-74).