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Cataloging: Fundamentals of the NLM® Classification

Page 10 of 15

Index

All main headings are:

  • MeSH descriptors
  • Linked to MeSH Browser via the tree icon

Sub-Indexes (SIs)

  • Facets of main index terms are entered in Sub-Indexes (SIs). Types of SIs:
    • General—Denotes general coverage

       

      Screen capture of an example of a general S I type.

       

    • See—Refers user to a more specific main index term

       

      Screen capture of an example of a see S I type.

       

    • Topical (subject)—Designates a facet of the main heading

       

      Screen capture of an example of a topical (subject) S I type.

       

    • See Also—Refers to related main index term

       

      Screen capture of an example of a see also S I type.

       

    • Form—Indicates form number

       

      Screen capture of an example of a form S I type.

       

    • Usage—notes giving special instructions

       

      Screen capture of an example of a usage S I type.

       

  • Sub-indexes may have several indentation levels

     

    Screen capture of an example of a S I type with several indentation levels.


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