Q. How can I find the DOI number (digital object identifier) for a reference I'm citing in my paper?


A free DOI lookup tool is available at:


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]


  • Last Updated Jul 15, 2017
  • Views 25920
  • Answered By Cindy Schmidt

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