Grey literature in meta-analyses of randomized trials of health care interventions.

Journal article

BACKGROUND: The inclusion of grey literature (i.e. literature that has not been formally published) in systematic reviews may help to overcome some of the problems of publication bias, which can arise due to the selective availability of data. OBJECTIVES: To review systematically research studies, which have investigated the impact of grey literature in meta-analyses of randomized trials of health care interventions. SEARCH STRATEGY: We searched the Cochrane Methodology Register (The Cochran...

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Authors: Hopewell, S; McDonald, S; Clarke, M; Egger, M

• Publication status: Published
• Journal: Cochrane database of systematic reviews
• Issue: 2
• Pages: MR000010
• Publication date: 2007-01-01
• DOI: 10.1002/14651858.mr000010.pub3
• EISSN: 1469-493X
• ISSN: 1469-493X
• Language: English
• Keywords: Treatment Outcome; Randomized Controlled Trials as Topic; Publication Bias; Publishing; Meta-Analysis as Topic