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MeSH Tree Structures

Subheading Groupings

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

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

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

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

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