Digital object identifier
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=Digital Object Identifier
A system for cataloguing digital information, particularly journal articles. A reference number is given eg 10.1097/01.inf.0000137571.35541.55 that can then be resolved via the DOI website to the journal article.
DOI numbers are used in Ovid. Pubmed PMID numbers are used in similar way, although the DOI number can refer to a specific part of a journal article and takes you to the original journal site, whereas the PMID number is used in Pubmed to find a citation.
According to Science Direct:
- "A digital object identifier (DOI) can be used to cite and link to electronic documents. A DOI is guaranteed never to change, so you can use it to link permanently to electronic documents."
The DOI system was developed by the International DOI Foundation.
How to look up an article using its DOI
An article in Lancet Infectious Diseases has the following DOI:
To look up the reference, open the following website:
Paste the doi ("10.1016/S1473-3099(07)70266-9" in this example) into the box and click on the Go button.