Identifier of a publication in a bibliographic reference or product.
The @pub-id-type attribute is used either to identify the type of identifier, or to name the authority, organization, or system that defined this identifier, for example, identifying a DOI, PubMed Central identifier, PII, the publisher’s identifier, etc. (See @pub-id-type for values.)
<!ELEMENT pub-id (#PCDATA) >
Text, numbers, or special characters
<element-citation>, <mixed-citation>, <nlm-citation>, <product>, <related-article>, <related-object>, <std>
<article>
<front>...
</front>
<body>
...
</body>
<back>...
<ref-list>...
<ref id="B8">
<label>8</label>
<mixed-citation>
<string-name><surname>Weissert</surname>,
<given-names>W</given-names></string-name>
<string-name><surname>Wan</surname>,
<given-names>T</given-names></string-name>
<string-name><surname>Livieratos</surname>,
<given-names>B</given-names></string-name>
<string-name><surname>Katz</surname>,
<given-names>S</given-names></string-name>
<article-title>Effects and costs of day-care services
for the chronically ill: a randomized
experiment.</article-title>
<source>Medical Care</source>
<volume>18</volume>
<year iso-8601-date="1980">1980</year>
<fpage>567</fpage>
<lpage>584</lpage>.
<pub-id pub-id-type="pmid">6772889</pub-id>
</mixed-citation></ref>
...
</ref-list>
</back>
</article>
JATS-references1.ent