Medical Subject Headings
or simply MeSH are the controlled vocabulary used by Medline and other databases to classify and process the information stored in them.
The Lister Hill National Center for Biomedical Communications used Unified Medical Language System (UMLS) tools to further analyze search logs and created a ranked list of search terms organized by NLM's Medical Subject Heading
(MESH) vocabulary (McCray, Loane, Browne, & Bangalore, 1999).
 MEDLINE classifies journal articles by a controlled vocabulary of medical subject headings
The 2018 Medical Subject Headings
vocabulary was evaluated for inclusion in the Classification Index.
BrowZine uses a custom 3-tier taxonomy  of more than 1,200 terms based on several existing taxonomies: the National Academies' Taxonomy of Fields, the National Center for Education Statistics Classification of Instructional Programs, the Berkeley Press 2011 Taxonomy of Academic Programs, Library of Congress subject headings, and Medical Subject Headings
The hints included information on how to locate relevant reference books, books in the general collection, and appropriate Medical Subject Headings
to apply to MEDLINE searches.
In May 2000, a new partnership was formed between GPO and the National Library of Medicine to provide permanent access to online versions of the Index Medicus, Medical Subject Headings
, and the Library's Audiovisuals Catalog.
These include changing the Medical Subject Headings
main headings and subheadings as well as Supplementary Concept Records that standardize names and associated numbers for chemicals, protocols, and diseases that are not main headings.
Attached to these are subject heading or descriptor manuals--e.g., Library of Congress Subject Headings, MeSH (Medical Subject Headings
), or specific thesauri.
On Wednesday, August 9, 2017, join the National Network of Libraries of Medicine Training Office (NTO) for a 90-minute Webinar covering several advanced concepts about the use of Medical Subject Headings
(MeSH) for searching via PubMed.
Other search criteria include record date, publication year, and Medical Subject Headings
(MeSH) term search.
Among the dozens of MEDLINE versions, Ovid's version still stands out with its intuitive interface, intelligent term mapping, and best implementation of the NLM Medical Subject Headings