Guidelines from Other Collaborations Campbell Collaboration: Guidelines for Preparation of Review Protocols Guidelines (0.2 MB) EPPI-Centre Methods for Conducting Systematic Reviews Full document (0.4 MB) Collaboration for Environmental Evidence (CEE): Guidelines for Systematic Reviews in Environmental Management Full document (2.6 MB) There are further useful resources on the webpages of the following collaborations: The Cochrane Collaboration The Campbell Collaboration EPPI Centre: Evidence for Policy and Practice Information and Co-ordinating Centre 3ie: International Initiative for Impact Evaluation