Identify alternative and keywords to describe each PICO component. Consider the following questions to uncover alternative and keywords for each component:
Comparison (if applicable)
Consult the MeSH thesaurus
MeSH (Medical Subject Headings) is a controlled vocabulary thesaurus that indexers at the U.S. National Library of Medicine use to classify articles in PubMed. MeSH terms are also used by many other nursing and health research databases.