"A scientific investigation that focuses on a specific question and that uses explicit, planned scientific methods to identify, select, assess, and summarize the findings of similar but separate studies. It may or may not include a quantitative synthesis of the results from separate studies (meta-analysis) depending on the available data."
Eden, J., Levit, L., Berg, A., & Morton, S. (Eds.). (2011). Finding what works in health care: standards for systematic reviews. National Academies Press.
Timeline for a Cochrane review Table used with permission. Green S, Higgins JPT (editors). Chapter 2: Preparing a Cochrane review. In: Higgins JPT, Green S (editors). Cochrane Handbook for Systematic Reviews of Interventions Version 5.1.0 (updated March 2011). The Cochrane Collaboration, 2011. Available from http://handbook.cochrane.org
Steps in the undertaking of a systematic review in orthopaedic surgery. Dario Sambunjak corresponding author and Miljenko Franić. PMC3291784 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3291784/
1 – 2 Preparation of protocol.
3 – 8 Searches for published and unpublished studies.
2 – 3 Pilot test of eligibility criteria.
3 – 8 Inclusion assessments.
3 Pilot test of ‘Risk of bias’ assessment.
3 – 10 Validity assessments.
3 Pilot test of data collection.
3 – 10 Data collection.
3 – 10 Data entry.
5 – 11 Follow up of missing information.
8 – 10 Analysis.
1 – 11 Preparation of review report.
12 – Keeping the review up-to-date.