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{{Self-reference|For the use of digital object identifiers on Wikipedia, see [[Wikipedia:Digital Object Identifier]].}} …ility|interoperable]], a DOI differs from [[ISBN]]s or [[ISRC]]s which are identifiers only. The DOI system uses the [[indecs Content Model]] for representing met

== Comparison with other identifiers == Since the ISSN applies to an entire serial, other identifiers have been built on top of it to allow references to specific volumes, artic

…19| archive-url = https://web.archive.org/web/20190402074747/https://www.myidentifiers.com.au/isbn/main| url-status = live}}</ref> …l 2014 }}. ISBN.org sometimes calls them ''group numbers''. Their table of identifiers now refers to ''ISBN prefix ranges'', which must be assumed to be group ide

…rameters are: Article Type (MeSH terms, e.g., "Clinical Trial"), Secondary identifiers, (MeSH terms), Language, Country of the Journal or publication history (e-p Since July 2005, the MEDLINE article indexing process extracts identifiers from the article abstract and puts those in a field called Secondary Identi

…etadata]], medical [[Ontology (information science)|ontology]], and unique identifiers which enrich the [[XML]] structured data for each article.<ref>{{cite journ …MID]] is the bibliographic identifier for the [[PubMed]] database. The two identifiers are distinct however. It consists of "PMC" followed by a [[string (computer