Grading of Recommendations Assessment, Development and Evaluation (GRADE)

• GRADE Working Group
• GRADE Handbook
• GradePro Software
• NVSHA Zakkaart

Cochrane

• Cochrane Handbook for Systematic Reviews of Interventions
• Cursussen

CONSORT

• Consolidated Standards of Reporting Trials (CONSORT)

Newcastle-Ottowa Scale (NOS)

• The Newcastle-Ottawa Scale (NOS) for assessing the quality of nonrandomised studies in meta-analyses

STROBE

• STrengthening the Reporting of OBservational studies in Epidemiology (STROBE)

PRISMA Guidelines

• Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA)