Module 1: Foundations of MeSH in MEDLINE®

MeSH Tree Structure

Subheading Groupings

Subheadings are arranged in logical hierarchical groupings or families ( ).

For example, 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 some do not logically fit in any of the groupings).

Subheading Grouping example showing therapeutic use with administration & dosage, adverse effects, poisoning underneath