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3.4  Considerations when updating a Cochrane review

3.4.1 Where to start

3.4.2 Updating a review with an unchanged review question

3.4.3 Revising review questions and selection criteria

3.4.4 Splitting reviews

3.4.5 Amending the methodology of a review

3.4.6 Other changes to the review

3.4.7 Editorial process