The issue number of a journal, or in rare instances, book
<issue> may be used in bibliographic references (<citation> and <nlm-citation>). For extensive examples of formatted <nlm-citation>s including use of <issue>s in <nlm-citation>s, see: Sample PubMed Central Citations. To see tagged versions of these examples, see: Sample PubMed Central Citations - XML Tagged.
<!ELEMENT issue (#PCDATA %issue-elements;)* >
Any combination of:
<book-part-meta> Book Part Metadata; <citation> Citation; <nlm-citation> NLM Citation Model; <related-article> Related Article Information; <related-object> Related Object Information
In a bibliographic reference (punctuation and spacing removed):
...<ref-list>
<title>References</title>
<ref id="bid.41">
<label>1</label>
<citation>
<person-group>
<name><surname>Olson</surname><given-names>M</given-names></name>
...
</person-group>
<article-title>A common language for physical mapping
of the human genome</article-title>
<source>Science</source>
<year>1989</year>
<volume>245</volume>
<issue>4925</issue>
<fpage>1434</fpage>
<lpage>1435</lpage>
<pub-id pub-id-type="pmid">2781285</pub-id>
</citation>
</ref>
</ref-list>...
In a bibliographic reference (punctuation and spacing preserved):
...
<ref>
<citation>
<person-group person-group-type="author">
<name><surname>Shneiderman</surname>
<given-names>B.</given-names></name>
</person-group>.
<article-title>Designing information-abundant web
sites: issues and recommendations</article-title>.
<source>Web Developers' Journal</source>
<year>1997</year> <season>Winter</season>;
<volume>47</volume>(<issue>1</issue>)
<issue-title>World Wide Web Usability</issue-title>:
<page-range>100–101, 105, 107–120</page-range>.
<fpage>100</fpage>
<lpage>120</lpage>
</citation>
</ref>
...
common.ent