Indexes do not search the full text of an article. They search only the bibliographic record for information about the article, such as author, title, subject, and sometimes an abstract. They often use assigned subjects or descriptors that can be used to focus your search and find related materials. Search first by keyword and examine the results for relevant subject headings. Use subject links to find similar material or run another search for those subjects. Indexes often include journals not included in Westlaw or Lexis.