research methods & reporting

Preferred reporting items for systematic reviews and meta-analyses: the PRISMA statement

David Moher, A. Liberati, Jennifer Tetzlaff et al. · BMJ · 2009 · 83.3K citations · Full text

Public Health, Biostatistics, Evidence-based Practice +11

Bias in meta-analysis detected by a simple, graphical test

Matthias Egger, George Davey Smith, Martin Schneider et al. · BMJ · 1997 · 56.3K citations

Public Health, Biostatistics, Causal Inference +13

Meta-analysis in clinical trials

Rebecca DerSimonian, Nan M. Laird · Controlled Clinical Trials · 1986 · 39.3K citations

Public Health, Biostatistics, Meta-analysis +9

Quantifying heterogeneity in a meta‐analysis

Julian P. T. Higgins, Simon G. Thompson · Statistics in Medicine · 2002 · 36.7K citations

Public Health, Biostatistics, Epidemiologic Methods +10

GRADE: an emerging consensus on rating quality of evidence and strength of recommendations

Gordon Guyatt, Andrew D Oxman, Gunn Elisabeth Vist et al. · BMJ · 2008 · 22.1K citations · Full text

Education, Educational Assessment, Evidence-based Practice +8