handbookFree
Cochrane
The official guide to how Cochrane systematic reviews of interventions are planned, run and reported. The current edition is version 6.5 (2024), edited by Julian Higgins and James Thomas, and it can be read online at no cost.
Online reference
databaseFree
EQUATOR Network
A searchable catalogue of more than 700 reporting guidelines for health research. You can filter it by study type, clinical area and report section to find the right checklist for a manuscript.
Online reference
handbookFree
GRADE Working Group
A handbook by Schünemann, Brożek, Guyatt and Oxman on rating the certainty of evidence and the strength of recommendations with the GRADE approach. It was last updated in 2013 and, according to the page, is being replaced by the newer GRADE Book, but it remains available online.
Online reference
guidelineFree
SPIRIT–CONSORT Group
The official home of the 2025 SPIRIT checklist for trial protocols and the 2025 CONSORT checklist for reporting randomised trial results. Checklists, explanation papers and free online writing aids can all be downloaded at no cost.
Online reference
guidelineFree
PRISMA Group
The main reporting guideline for systematic reviews and meta-analyses. The site provides the checklist, the flow-diagram template, the explanation papers, extensions for other review types and translations.
Online reference
guidelineFree
International Committee of Medical Journal Editors (ICMJE)
The widely adopted standards on authorship, conflicts of interest, peer review and publication ethics for medical journals. The latest version, updated January 2026, can be read online or downloaded as a PDF.
Online reference