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MEDLINE Guide

A guide to accessing and using MEDLINE through Ovid, ProQuest, and PubMed.

WHAT ARE MeSH TERMS?

MeSH (Medical Subject Headings), the National Library of Medicine's controlled vocabulary thesaurus, consists of terms naming descriptors in a hierarchical structure that permits searching at various levels of specificity.

In other words, MeSH terms describe what an article is about and are used to label all articles on a topic even if different authors use different words for the same concept (such as cancer vs. neoplasm vs. tumor).

USING MeSH TERMS IN PROQUEST MEDLINE