The following databases provide citations to articles that report on randomized clinical control trials and other empirical studies:
There are a variety of tools to help you manage your research. Citation management software you a place to store citations and identify duplicates. Other tools will help you track your search strategy and extract data for your research.
Zotero: An free, online tool for all users. Similar to RefWorks, and it works seamlessly with PubMed.
abstrackr : A free, online application from Brown University that facilitates screening of citations by multiple reviewers.
Systematic Review Data Depository: a tool for the extraction and management of data for systematic review or meta-analysis.
Covidence: A free systematic review collaboration tool from a team of researchers in Australia.
The Yale MeSH Analyzer: Created by Yale Librarians, this new tool generates a grid of MeSH terms from citations you have identified in PubMed. This can help you identify additional keywords to maximize the number of citations you will get from PubMed.
Several books and websites offer comprehensive guidance on the process of doing systematic reviews. Here are a few:
It can be helpful to supplement your review of journal literature with research from grey literature, which includes conference papers, presentations, and research papers found on an organization’s websites. Here are a few recommended sources of grey literature: