Criteria for distinguishing effectiveness from efficacy trials in systematic reviews
By: prepared for Agency for Healthcare Research and Qaulity, U.S. Department of Health and Human Services ; prepared by RTI-International-University of North Carolina Evidence-based Practice Center ; investigators Gerald Gartlehner ... [et. al.].
Contributors: United States. Agency for Healthcare Research and Quality; RTI International-University of North Carolina Evidence-based Practice Center
Series: Technical review -- no. 12; AHRQ publication -- no. 06-0046
Publisher: The Agency
Published: 2006
Place of publication: Rockville, MD
Language: eng
Number of pages: 19
Subjects: Clinical trials
Notes: Includes bibliographical references (p. 17-19).