FAQ: NLM® LocatorPlus® - Wildcard Characters
Question: Is it possible to use wildcards or other special characters when I search LocatorPlus?
Wildcard characters and other special characters you can use are:
Question mark (?)
- The question mark can substitute for zero, one, or more characters at the beginning, middle, or end of the term.
- The question mark wildcard does not work in Z39.50 searches of LocatorPlus.
|h?ematology||hematology or haematology|
|?clinic||clinic, polyclinic, multiclinic, teleclinic, etc.|
|clinic?||clinic, clinics, clinical, clinician, clinicians, etc.|
- The percent sign can be used at the beginning, middle, or end of a search term.
- Each percent sign represents one character in the term.
- The percent sign wildcard does not work in Z39.50.
|wom%n||woman or women|
|clinic%||clinics, clinica, clinico, etc.|
|clinic%%%||clinician, clinicals, etc.|
- Use an asterisk before a term to weight it as important. Example: *therapy
- Note: You cannot use the asterisk as a wildcard in LocatorPlus because it is used in Voyager to increase the relevance of a term.
Plus sign (+) - The term is an essential term. Example: +leukemia
Quotation marks ("") - Use double quotes to enclose a phrase. Example: "popular works"
Example of Keyword Anywhere search using several special characters: child? "popular works" +leukemia *therapy