3.1.3 Use an independent librarian or other information specialist to peer review the search strategy

Evidence-based Practice Centers (EPC) frequently internally peer review the electronic search strategies.

If at all possible, the final search strategy should be peer reviewed to check for errors (spelling mistakes, incorrect use of operators, or failure to include relevant MeSH) that could reduce the recall of papers.

Not mentioned.

3.1.4 Search bibliographic databases

Search at least two electronic databases. Begin with MEDLINE (including inprocess and other nonindexed citations) and the Cochrane Central Register of Controlled Trials. If topic is researched primarily outside of the United States, search relevant subject-specific databases, as well as databases with stronger international coverage of languages(s) of interest, such as EMBASE.

The selection of electronic databases to search will depend upon the review topic. Importance of MEDLINE, EMBASE, and Cochrane Central Register of Controlled Trials noted. Details of scope of additional databases with narrower focus listed.

The three most important sources to search for studies are Cochrane Central Register of Controlled Trials, MEDLINE, and EMBASE.

3.1.5 Search citation indexes

Use citation indexes. If possible use Web of Science or Scopus. If you do not have access to these databases, use Google Scholar, a free citation tracking database.

Citation searching is useful for identifying a cluster of related, and therefore highly relevant, papers.

Citation searching can be conducted for additional studies.

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