title: Tips for learners of evidence-based medicine: 4. Assessing heterogeneity of primary studies in systematic reviews and whether to combine their results.
authors.affiliation: Department of Medicine, University of British Columbia, Vancouver, BC.
authors.forename: Rose
authors.initials: R
authors.lastname: Hatala
authors.forename: Sheri
authors.initials: S
authors.lastname: Keitz
authors.forename: Peter
authors.initials: P
authors.lastname: Wyer
authors.forename: Gordon
authors.initials: G
authors.lastname: Guyatt
mesh_terms: D019317:Evidence-Based Medicine; D015201:Meta-Analysis as Topic; D012107:Research Design; D012196:Review Literature as Topic
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