Erratum for

• An introduction to methodological issues when including non-randomised studies in systematic reviews on the effects of interventions.

  Reeves BC, Higgins JP, Ramsay C, Shea B, Tugwell P, Wells GA. Reeves BC, et al. Res Synth Methods. 2013 Mar;4(1):1-11. doi: 10.1002/jrsm.1068. Epub 2013 Jan 24. Res Synth Methods. 2013. PMID: 26053535
• Issues relating to study design and risk of bias when including non-randomized studies in systematic reviews on the effects of interventions.

  Higgins JP, Ramsay C, Reeves BC, Deeks JJ, Shea B, Valentine JC, Tugwell P, Wells G. Higgins JP, et al. Res Synth Methods. 2013 Mar;4(1):12-25. doi: 10.1002/jrsm.1056. Epub 2012 Sep 25. Res Synth Methods. 2013. PMID: 26053536
• Issues relating to selective reporting when including non-randomized studies in systematic reviews on the effects of healthcare interventions.

  Norris SL, Moher D, Reeves BC, Shea B, Loke Y, Garner S, Anderson L, Tugwell P, Wells G. Norris SL, et al. Res Synth Methods. 2013 Mar;4(1):36-47. doi: 10.1002/jrsm.1062. Epub 2012 Nov 13. Res Synth Methods. 2013. PMID: 26053538
• Non-randomized studies as a source of complementary, sequential or replacement evidence for randomized controlled trials in systematic reviews on the effects of interventions.

  Schünemann HJ, Tugwell P, Reeves BC, Akl EA, Santesso N, Spencer FA, Shea B, Wells G, Helfand M. Schünemann HJ, et al. Res Synth Methods. 2013 Mar;4(1):49-62. doi: 10.1002/jrsm.1078. Res Synth Methods. 2013. PMID: 26053539
• Checklists of methodological issues for review authors to consider when including non-randomized studies in systematic reviews.

  Wells GA, Shea B, Higgins JP, Sterne J, Tugwell P, Reeves BC. Wells GA, et al. Res Synth Methods. 2013 Mar;4(1):63-77. doi: 10.1002/jrsm.1077. Res Synth Methods. 2013. PMID: 26053540