Answered By: Paul Landers
Last Updated: Aug 28, 2017     Views: 16

A DOI (Document Object Identifier) is a unique ID in the format prefix/suffix assigned to a document or article. It serves a similar purpose for individual documents as an ISSN does for an entire journal publication, or an ISBN for a book. Not all documents have a DOI assigned because it is a voluntary system, and authors or publishers must pay to register a DOI.

  • Example DOI:  10.1097/JCN.0000000000000401

For more information visit

See also:  How do I search by DOI?