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<issue> Issue Number

Issue number of a journal, or in rare instances, a book.

Usage/Remarks

Issue Metadata

Some journal tag sets identify three types of article metadata: that concerning the specific article, that concerning the journal, and that concerning the issue of the journal that contains the article. In this Tag Set, the metadata for the issue and the article has been placed together inside the <article-meta>. In the article metadata, the <issue> is the issue number of the issue in which the article appears.
In Citations
The <issue> element is also used in bibliographic references (<element-citation> and <mixed-citation>) where it indicates the issue in which the cited material was published.
In Joint Issues
If an article was published in a joint issue “Iss. 2-3”, both issue numbers should be placed into a single <issue> element: <issue>1-2</issue>.
Related Elements
The related element <issue-id> records an identifier for the issue. This <issue> number element is typically just a simple number such as “4” or “35”.
Attributes
content-type
seq
specific-use

Base Attributes

id
xml:base
xml:lang
Models and Context
May be contained in
<article-meta>, <element-citation>, <front-stub>, <mixed-citation>, <nlm-citation>, <product>, <related-article>, <related-object>, <volume-issue-group>
Description
Text, numbers, or special characters, zero or more
Content Model
<!ELEMENT  issue        (#PCDATA %issue-elements;)*                  >
Expanded Content Model

(#PCDATA)*

Tagged Samples
<article-meta> 
...
<article-meta>
 ...  
 <volume>1540</volume>
 <issue>1</issue>
 <isbn content-type="conf-proc">978-0-7354-1164-7</isbn>
 <fpage seq="1">113</fpage>
 <lpage>124</lpage>
</article-meta>
...
...
<article-meta>
 <article-id pub-id-type="pmid">...</article-id>
 <title-group>...</title-group>
 <contrib-group>...</contrib-group>
 <aff id="StLukes">...</aff>
 <pub-date publication-format="print" date-type="pub" iso-8601-date="1999-03-27">
  <day>27</day><month>03</month><year>1999</year>
 </pub-date>
 <volume>318</volume>
 <issue>7187</issue>
 <fpage>837</fpage>
 <lpage>841</lpage>
 <history>
  <date date-type="accepted" iso-8601-date="1999-01-29">
   <day>29</day>
   <month>01</month>
   <year>1999</year>
  </date>
 </history>
 <permissions>
  <copyright-statement>Copyright &#x00A9; 1999, British
   Medical Journal</copyright-statement>
  <copyright-year>1999</copyright-year>
  <copyright-holder>British Medical Journal</copyright-holder>
 </permissions>
 <abstract>
  <p>To examine the effectiveness of day hospital attendance 
   in prolonging independent living for elderly people.</p>
 </abstract>
</article-meta>
...
In citations
Mixed citation
...
<ref id="G3">
<mixed-citation publication-type="journal" publication-format="print">
 <string-name><surname>Llanos De La Torre Quiralte</surname>,
 <given-names>M</given-names></string-name>,
 <string-name><surname>Garijo Ayestaran</surname>,
 <given-names>M</given-names></string-name>,
 <string-name><surname>Poch Olive</surname>,
 <given-names>ML</given-names></string-name>.
 <article-title xml:lang="es">Evolucion de la mortalidad
 infantil de La Rioja (1980-1998)</article-title>.
 [<trans-title xml:lang="en">Evolution of the infant
 mortality rate in la Rioja in Spain
 (1980-1998)</trans-title>]. <source>An Esp Pediatr</source>.
 <year iso-8601-date="2001-11">2001</year>
 <month>Nov</month>;<volume>55</volume>(<issue>5</issue>):
 <fpage>413</fpage>&ndash;<lpage>420</lpage>. Figura 3, Tendencia
 de mortalidad infantil [Figure 3, Trends in infant
 mortality]; p. 418. Spanish.</mixed-citation>
</ref>
...
Element citation
...
<ref id="G3">
 <element-citation publication-type="journal" publication-format="print">
  <name><surname>Llanos De La Torre Quiralte</surname>
   <given-names>M</given-names></name>
  <name><surname>Garijo Ayestaran</surname>
   <given-names>M</given-names></name>
  <name><surname>Poch Olive</surname>
   <given-names>ML</given-names></name>
  <article-title xml:lang="es">Evolucion de la mortalidad
   infantil de La Rioja (1980-1998)</article-title>
  <trans-title xml:lang="en">Evolution of the infant
   mortality rate in la Rioja in Spain (1980-1998)</trans-title>
  <source>An Esp Pediatr</source>
  <year iso-8601-date="2001-11">2001</year>
  <month>Nov</month>
  <volume>55</volume>
  <issue>5</issue>
  <fpage>413</fpage>
  <lpage>420</lpage>
  <comment>Figura 3, Tendencia de mortalidad infantil
   [Figure 3, Trends in infant mortality]; p. 418. Spanish</comment>
 </element-citation>
</ref>
...
Multiple issue numbers 
...
<front>
 <journal-meta>
  <journal-id>...</journal-id>
  <journal-title-group>
   <journal-title>Bristol Medico-Chirurgical Journal</journal-title>
  </journal-title-group>
  <issn>...</issn>
 </journal-meta>
 <article-meta>
  ...
  <pub-date publication-format="print" date-type="pub" iso-8601-date="1971-01">
   <month>1</month>
   <year>1971</year>
  </pub-date>
  <volume>86</volume>
  <issue content-type="volume">1</issue>
  <issue content-type="publication">317</issue>
 </article-meta>
</front>
...