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- Using GRADE in situations of emergencies and urgencies: certainty in evidence and recommendations matters during the COVID-19 pandemic, now more than ever and no matter what.J Clin Epidemiol. 2020; 127: 202-207
- Selecting Observational Studies for Comparing Medical Interventions. Methods Guide for Effectiveness and Comparative Effectiveness Reviews.AHRQ, Rockville, MD2010
- Higgins J.P.T. Thomas J. Chandler J. Cumpston M. Li T. Page M.J. Cochrane Handbook for Systematic Reviews of Interventions version 6.3 (updated February 2022). John Wiley & Sons, Chichester, UK2022
- Non-randomized studies as a source of complementary, sequential or replacement evidence for randomized controlled trials in systematic reviews on the effects of interventions.Res Synth Methods. 2013; 4: 49-62
- GRADE guidance 24 optimizing the integration of randomized and non-randomized studies of interventions in evidence syntheses and health guidelines.J Clin Epidemiol. 2021; 142: 200-208
- GRADE guidelines: 4. Rating the quality of evidence--study limitations (risk of bias).J Clin Epidemiol. 2011; 64: 407-415
- GRADE guidelines: 3. Rating the quality of evidence.J Clin Epidemiol. 2011; 64: 401-406
- ROBINS-I: a tool for assessing risk of bias in non-randomised studies of interventions.BMJ. 2016; 355: i4919
- GRADE Guidelines: 18. How ROBINS-I and other tools to assess risk of bias in non-randomized studies should be used to rate the certainty of a body of evidence.J Clin Epidemiol. 2018; 111: 105-114
- Grading of Recommendations Assessment, Development, and Evaluations (GRADE) notes: extremely serious, GRADE's terminology for rating down by three levels.J Clin Epidemiol. 2020; 120: 116-120
Publication stageIn Press Journal Pre-Proof
Conflicts of interest: Carlos Cuello and Holger Schünemann are members of the GRADE working group; however, this commentary does not reflect an official opinion of the GRADE working group but that of the authors. All authors have no financial conflicts to declare.
Author contributions: Carlos Cuello and Holger Schünemann: Conceptualization, writing original draft, reviewing, and approval of final version.