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March 2020

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The 2018 version of MEDLINE now available on STN

30. January 2018

The 2018 MEDLINE reload was completed on January 27, 2018.

The 2018 MeSH thesaurus is available as a source of terminology for your searches.

This year 113 MeSH headings were either changed or deleted and replaced with more up-to-date terminology. Please review your Alert (SDI) strategies or saved searches that contain any of these terms, they must be updated to use the new term, or there will be a negative impact on retrieval.
For more details, see
https://www.nlm.nih.gov/pubs/techbull/nd17/nd17_mesh_headings_replaced.html

Three new Publication Types are available for 2018.
Two of the new Publications Types are types of clinical trials:
Adaptive Clinical Trial and Equivalence Trial

NLM will no longer user CONTRAINDICATIONS (abbrev CT) as a MeSH Qualifier.
NLM has added a new MeSH SCR Class for Organism.
The new class (SCR Class 4) will be used for expanded coverage of viruses.

See the full NLM bulletin:
https://www.nlm.nih.gov/pubs/techbull/ nd17/nd17_medline_data_changes_2018.html