What is the difference between the NLM Catalog and LocatorPlus?
The NLM Catalog is an alternative search interface to NLM bibliographic records for journals, books, audiovisuals, computer software, electronic resources, and other materials that is available to users under the NCBI Entrez system. Updated every weekday, the NLM Catalog provides links to the library’s holdings in LocatorPlus. LocatorPlus is the web-based online public access catalog component of the Voyager integrated library system used at NLM. It is updated continuously and includes up-to-the minute information on NLM’s holdings, orders, and an item’s circulation status. It also provides access to authority records in MARC 21 format. Use the NLM Catalog to search when: • Your search is likely to retrieve over 10,000 citations. • You wish to explode on MeSH headings. • You wish to identify or search primary subjects. • You wish to view or use bibliographic records in XML format. • You are searching a known item. Use LocatorPlus to search when: • You are interested in NLM’s holdings o
