The National Library of Medicine (NLM) has announced that the NLM Catalog will soon be redesigned to provide users with a streamlined interface and enhanced search and display of the 1.4 million bibliographic records in the NLM database. The NLM Catalog will contain detailed MEDLINE indexing information about the journals in PubMed and other National Center for Biotechnology Information (NCBI) databases. The Journals Database will be retired.
New search tags will be added to limit searches to a specific field. Some of the new search tags are: Broad Subject Term(s), Current Format Status, Current Indexing Status, Version Indexed, ISSN, and PubMed Central Holdings.
A new category of Limits called Journal Subsets will be added. Users will be able to limit searches to journals referenced in the NCBI databases, PubMed journals, journals currently (or previously) indexed for MEDLINE, PubMed Central journals, and PubMed Central forthcoming journals. Users can also limit searches to journals published in an electronic-only format. A new Images Material Type (images from the History of Medicine database) and three new Publication Types - Portraits, Postcards and Posters - will also be added.
A Journal display, added to the Display Options in the NLM Catalog, will include fields of interest to those searching for information about journals, including MEDLINE indexing information. The Full display will also be expanded to include all available fields where applicable.
The NLM Catalog will also contain detailed MEDLINE indexing information about the journals in PubMed and other NCBI databases. Users can limit NLM Catalog searches to journals in the NCBI databases by using the Journals in NCBI Databases link on the NLM Catalog homepage or the Limits page.
Users can also visit the Limits page to limit a search to various journal subsets. The NLM Catalog will apply an AND Boolean operator when the Journals referenced in the NCBI databases limit is selected with a Journal Subset limit. A notice appears at the top of the search results indicating that limits have been activated.
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