MeSH Tree Structures

Subheading Groupings

Subheadings are arranged in logical hierarchical groupings (families). For example:

• therapeutic use
  • administration & dosage
  • adverse effects
  • poisoning

A search of the subheading therapeutic use in PubMed would automatically explode to retrieve citations indexed with the subheadings administration & dosage, adverse effects, and poisoning.

Not all subheadings are placed in these groupings (as they do not logically fit).

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