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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