Answered By: Cindy Schmidt
Last Updated: Aug 03, 2018     Views: 26457

A free DOI lookup tool is available at:

http://www.crossref.org/guestquery/

Alternately, if you need the DOI of a journal article that's indexed in PubMed, try using PubMed to find the needed number:

  1. Find the PubMed record for the article (PubMed's single citation matcher may be helpful).
  2. Use the PubMed "Display setting" drop-down menu to select and apply the "MEDLINE" format.
  3. Look for the [AID] fields near the bottom of the PubMed record.  The DOI if present, will be followed by [doi]