Indexing for MEDLINE

Introduction: Indexing Tools

MeSH Browser
MeSH is the National Library of Medicine's controlled vocabulary thesaurus. It consists of sets of terms arranged in a hierarchical structure that permits searching at various levels of specificity. The MeSH vocabulary is organized into a series of trees.

Indexing Manual (NLM Staff access only)
The Indexing Manual provides discussion on all aspects of indexing at NLM. The Indexing Manual is provided to all new indexers and is available online to NLM staff. The online version contains a search feature.

Technical Memoranda (NLM Staff access only)
Technical Memoranda are updates to the Indexing Manual that provide further clarification of a specific issue or address an immediate need. Technical Memoranda are distributed online and on paper to NLM staff.

Reference Materials
Indexers may use reference materials such as Dorlands Medical Dictionary or Bergeys Manual of Systematic Bacteriology. These references are available to indexers onsite at NLM.

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