NOTE: Logging in to the following databases through the Health Sciences Library Databases ensures you have access to the full text of articles, when available.
Some systematic review topics will be covered by subject specific databases.
Freely available databases such as AGRICOLA (agriculture, including animal sciences, human nutrition, environmental sciences and more); Basic Medical Sciences Databases; ERIC (education); PEDro (physiotherapy) and others may be appropriate depending on your topic. A database not available to affiliates of New York Medical College can be searched by a librarian through Dialog for associated fees.
NOTE: Linking to the Cochrane Databases and PubMed through the Health Sciences Library ensures that you have access to the full text of systematic reviews and articles when available.
In your protocol you have already established the eligibility criteria for inclusion. In other words, what does the study need to look like in order to answer your research question? What is the population? Age? Time frame? Problem? Intervention?
Since you have cast a wide net and completed a rigorous search, you have many studies from which to choose. You will now use this criteria for screening and selecting.
Remember, screening and selection requires two or more reviewers to work independently from one another. This reduces any chance of bias.
Here are two tools that may help in this process. Keep in mind, Covidence goes beyond the initial screening process and into selecting, it also allows you to extract the data.
Covidence is a web based tool that streamlines your ability to screen, select, as well as extract the data from the selected studies for your systematic review. It can also Generate this PRISMA flow diagram and can export quality assessment, risk of bias, and study data to RevMan to generate reports and MetaAnalysis.
Outside of the free trial though, Covidence is fee based.
RevMan facilitates preparation of protocols and full reviews, including text, characteristics of studies, comparison tables, and study data. It can perform meta-analysis of the data entered, and present the results graphically.