MEDLINE Fact Sheet
Fact Sheet MEDLINE® MEDLINE is the U.S. National Library of Medicine® (NLM) premier bibliographic database that contains more than 24 million references to journal articles in life sciences with a concentration on biomedicine. A distinctive feature of MEDLINE is that the records are indexed with NLM Medical Subject Headings (MeSH®). MEDLINE is the online counterpart to MEDLARS® (MEDical Literature
Files Available to Download
MeSH files now available via the NLM Data Distribution Program Beginning October 31, 2018, MeSH files are now available to download via the NLM Data Distribution Program. Information and download links may be found via the Download MeSH Data page. Please update any links and bookmarks that currently point to this page. Changes to MeSH Terminology for 2019 The reports below highlight changes that a
New Descriptors by Tree Subcategory - 2013
New Descriptors by Tree Subcategory - 2013 A8 (Nervous System) Central Pattern Generators A10 (Tissues) Adventitia Perforator Flap A11 (Cells) Madin Darby Canine Kidney Cells MCF-7 Cells Sf9 Cells A17 (Integumentary System) Acellular Dermis A19 (Fungal Structures) Fungal Capsules B1 (Eukaryota) Acanthocheilonema Brown Recluse Spider Odonata Rana clamitans C2 (Virus Diseases) Buschke-Lowenstein Tum
Deleted Descriptors
Deleted Descriptors - 2018 The following descriptors were deleted for 2018 MeSH. The Current Heading column on the right indicates where Medline Citations were maintained to by Year-End Processing (YEP). The type indication next to the Current Heading indicates whether it is newly created (NEW) for 2018 MeSH or an existing heading that was modified (MOD) for 2018 MeSH. The final column indicates w
Changed Descriptors - 2015
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MeSH Vocabulary Changes
MeSH Vocabulary Changes In biomedicine and related areas, new concepts are constantly emerging, old concepts are in a state of flux and terminology and usage are modified accordingly. To accommodate these changes, descriptors must be added to, changed or deleted from MeSH with adjustments in the related hierarchies, the Tree Structures. There are many factors that must be considered in deciding wh
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Medical Subject Headings (MESH®) Fact Sheet
New Descriptors - 2015