Which search concepts will probably be represented by subheadings?

Subheadings are aspects of heading concepts. If two of your search concepts can be linked by a preposition, one of those concepts is probably a subheading concept.

Write down the heading-concept/subheading-concept combinations that you plan to use.

WARNING!
Use subheadings sparingly:

• Do not use a subheading with a heading if you do not need to focus on a specific aspect of that heading topic.
• Do not use a subheading if three or more aspects of the heading topic are of interest. Articles covering many aspects of a topic are indexed with the topic heading without any subheadings.

A heading without subheadings will retrieve all records indexed with that heading regardless of the subheading/s used with the heading in the retrieved records. In other words, a search strategy containing --

• "Immunosuppressive Agents"[Mesh]

• "Immunosuppressive Agents"[Mesh]
• "Immunosuppressive Agents/adverse effects"[Mesh]
• "Immunosuppressive Agents/metabolism"[Mesh]
• "Immunosuppressive Agents/standards"[Mesh]
• "Immunosuppressive Agents/standards"[Mesh]
• "Myeloablative Agonists"[Mesh]

A heading/subheading combo will only retrieve records indexed with the same or a narrower heading/subheading combo. In other words, a search strategy containing --

• "Immunosuppressive Agents/adverse effects"[Mesh]

• "Immunosuppressive Agents"[Mesh]

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