Criteria for distinguishing effectiveness from efficacy trials in systematic reviews / prepared by RTI-International-University of North Carolina Evidence-based Practice Center ; investigators, Gerald Gartlehner [and others].
Imprint
[Rockville, Md.] : [Agency for Healthcare Research and Quality], [2006]
Mode of access: Internet from the AHRQ web site. Address as of 6/28/06: http://www.ahrq.gov/downloads/pub/evidence/pdf/efftrials/efftrials.pdf; current access available via PURL.
Note
Title from title screen (viewed on June 28, 2006).
"April 2006."
Bibliography
Includes bibliographical references (pages 17-19).
