Skip to main content
U.S. flag

An official website of the United States government

Here’s how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

This is a preview of updates coming to the Technical Bulletin's website in early December 2025. Return to current site.
Read more about the modernization release schedule in this announcement.
Comment via the yellow feedback button in the lower right hand corner of the page. Contact the NLM Help Desk with any questions or concerns.

This is archived content.

Links may have become inactive over time. Visit Archive-It   to find the original published layout.

List of Serials Indexed for Online Users, 2023 Available in XML

List of Serials Indexed for Online Users, 2023 Available in XML. NLM Tech Bull. 2023 Jan-Feb;(450):b5.

February 02, 2023 [posted]

The List of Serials Indexed for Online Users (LSIOU), 2023 edition, is now available in XML format. The 2023 edition contains 15,400 serial titles, including 5,280 titles currently indexed for MEDLINE as well as titles indexed over time that have ceased or changed titles. The titles are listed alphabetically by the journal title abbreviation.

Changes to the NLM Serials DTD

There are no changes to the 2023 Serials DTD.