In the Topic search field, what does “Map to medical subject headings” mean?
The feature called “Map to medical subject headings” automatically maps each search term to a term in MeSH. Mapping to MeSH enables you to retrieve records which may not contain the exact term(s) you are searching for but which are very relevant to your search. If the term you enter can be mapped to multiple subject headings, you will be able to select the headings that best describe the concept. Some terms cannot be mapped because there are no subject headings synonymous with or closely related to them.