The “pub-id-type” attribute names the type of identifier, or the organization or system that defined this identifier for the identifier of the journal article or a cited publication. 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).
<!ENTITY % pub-id-types "art-access-id | coden | doaj | doi | manuscript | medline | other | pii | pmcid | pmid | publisher-id | sici" >
common3.ent