Names the type of identifier, or the organization or system that defined the identifier, for a journal article identifier (part of the article metadata) or for a publication cited in a bibliographic reference list
Used on the <article-id> element, which holds an identifier for the entire article. Also used on the <pub-id> element, which is an identifier for a publication cited in a bibliographic reference <citation>
| Value | Meaning |
|---|---|
| coden | Obsolete PDB/CCDC identifier, which may be present on older articles |
| doi | Digital Object Identifier |
| medline | NLM Medline identifier |
| pii | Publisher Item Identifier; see /epub/piius.htm |
| pmid | PubMed ID; see www.ncbi.nlm.nih.gov/entrez/ query.fcgi?db=PubMed |
| publisher-id | Identifier (ID) such as an “article-id”, “artnum”, “identifier”, “article-number”, etc. that is given to an article by the publisher of the article. This could be the publisher’s unique internal production number or a more general identifier. |
| sici | Serial Item and Contribution Identifier (A journal article may have more than one SICI, i.e., one for a print version and another for an electronic version.) |
| other | Something other than one of the identifiers named in the list just given |
| Restriction: This attribute may be specified if the element is used. | |