urrent versions of the List of Journals Indexed in Index Medicus (LJI) and the List of Serials Indexed for Online Users (LSIOU) are now available in Portable Document Format (PDF) at the URL: http://www.nlm.nih.gov/pubs/libprog.html. PDF documents require the use of the Adobe® Acrobat® Reader, which can be downloaded from Adobe's Web site at no charge.

The List of Journals Indexed in Index Medicus contains listings for the 3,419 journals indexed for Index Medicus as of December 1999. There are four sections: (1) Alphabetic listing by abbreviated title, followed by full title; (2) Alphabetic listing by full title, followed by abbreviated title; (3) Alphabetic listing by subject field; and (4) Alphabetic listing by country of publication.

The List of Journals Indexed in Index Medicus is also available in print, and can be ordered from the Superintendent of Documents, U.S. Government Printing Office. Details concerning ordering the LJI in print can be found at: [Link no longer available as of June 4, 2018.].

The List of Serials Indexed for Online Users provides bibliographic information for serials indexed with the MeSH® vocabulary and cited in MEDLINE®, the backbone of NLM's PubMed information service. Citations for these serials date back as far as 1966 and include serials formerly found in the separate NLM databases HealthSTAR and AIDSLINE®. The current version of the LSIOU contains 9,334 serial titles, including 4,302 titles currently indexed for MEDLINE.

The data in both the LJI and LSIOU come from NLM's Integrated Library System (ILS), as does the data in NLM's online catalog, LocatorPlus. The following information is displayed in the publications: title, title abbreviation, first and last years of publication, ISSN, Acid-Free notation, NLM Unique Identifier, and preceding and suceeding entries.

The NLM Unique Identifier can be used in the new web-based DOCLINE. It is labeled "NLM Unique ID" in LocatorPlus on the HOLDINGS and DETAILS screens, and is in the 035$9 field in the MARC record. The NLM Unique Identifier is either a number with up to 9 digits or an 8 digit number followed by an alphabetic character. The following are examples of NLM Unique Identifiers:

27421290R

7908324

100888589

NLM plans to provide both the LJI and the LSIOU in XML format this summer. Users will be able to download the XML data via ftp. NLM will provide a Document Type Definition (DTD) at http://www.nlm.nih.gov/pubs/libprog.html with instructions on how to download the data from the NLM ftp server.

Baldinger E. List of Journals Indexed in Index Medicus And List of Serials Indexed for Online Users Now available in PDF format on the Web. NLM Tech Bull. 2000 May-Jun;(314):e3.