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MeSH 2025 Update - Merge Report

Published by National Library of Medicine | U.S. Department of Health & Human Services | Metadata Last Checked: February 11, 2026 | Last Modified: 2026-02-10
(Includes MeSH 2023 and 2024 changes) NOTE - There are no Merges for 2025 MeSH. The MeSH 2025 Update - Merge Report describes cases where two or more terms have merged into a single term. The term(s) being merged into another term become(s) an Entry Term. Merges can be between Descriptors and Supplementary Concept Records (SCRs), between Descriptors, or between SCRs. This report includes MeSH changes from previous years, starting from 2023.

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