Search Field Tags

Terms may be qualified using PubMed's search field tags. A list of the available field names, tags, and brief field descriptions may be found in the PubMed Help under Search Field Descriptions and Tags.

• Each search term should be followed (qualified) with the appropriate search field tag that indicates which field will be searched.
  
  
• The search field tag must follow the term -- you cannot prequalify.
  
  
• In the example, aromatherapy[mh] is correct and [mh] aromatherapy is incorrect.
  
  
• Tags are enclosed in square brackets.

Reminders:

• Boolean operators -- AND, OR, NOT -- must be entered in uppercase letters.
• Boolean operators are processed from left to right.
• Use parentheses to nest terms together so they will be processed as a unit and then incorporated into the overall strategy.

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