Document Type Definitions (DTDs) for NLM Databases
The purpose of a DTD (Document Type Definition) is to define the building blocks of an XML document. It defines the document structure with a list of allowable elements. Below are the DTDs that define NLM XML data.
- NLMMedlineCitationSet DTD (01/01/16)
See also the Entrez DTDs.
- 2016 MeSH Descriptor DTD - used for MeSH Vocabulary, companion database to MEDLINE/PubMed
- 2016 MeSH Qualifier DTD
- 2016 MeSH SCR DTD
- 2016 MeSH Pharmacological Action DTD
For more information, see the MeSH Download page.
NLM Catalog DTD:
- NLMCatalogRecordSet DTD (01/01/16)