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<issue-part> Issue Part (for citations)

Number, name, or other identifier of a sub-part of a journal issue.

Usage/Remarks

This element is used (rarely) only within citations and other referencing elements. This is not the machine-readable internal identifier such as a DOI or SICI; that is tagged with the related element <issue-id>. Nor is it the name or number of an entire issue; that is tagged with <issue>.
Some journals seldom or never use sub-issues, and therefore seldom or never use this element. Journals might, however, use it for a large journal issue whose print edition is bound in more than one separate part; those parts might well be numbered or named distinctly despite being parts of the same issue. Distinct numbers or names for each bound portion would then be tagged with this element, while the common identifier of the entire issue would be tagged with <issue>.
Attributes
content-type
specific-use

Base Attributes

id
xml:base
xml:lang
Models and Context
May be contained in
<element-citation>, <mixed-citation>, <product>, <related-article>, <related-object>
Description
Any combination of:
Content Model
<!ELEMENT  issue-part   (#PCDATA %issue-part-elements;)*             >
Expanded Content Model

(#PCDATA | email | ext-link | uri | inline-supplementary-material | related-article | related-object | hr | bold | fixed-case | italic | monospace | overline | overline-start | overline-end | roman | sans-serif | sc | serif | strike | underline | underline-start | underline-end | ruby | alternatives | inline-graphic | inline-media | private-char | chem-struct | inline-formula | tex-math | mml:math | abbrev | index-term | index-term-range-end | milestone-end | milestone-start | named-content | styled-content | fn | target | xref | sub | sup | x)*

Tagged Samples
In citations
Element citation
...
<ref>
 <element-citation publication-type="journal" publication-format="print">
  <name><surname>Gosse</surname>
   <given-names>P</given-names></name>
  ...
  <name><surname>Clementy</surname>
   <given-names>J</given-names></name>
  <article-title>Reduction in arterial distensibility
   in hypertensive patients as evaluated by ambulatory
   measurement of the QKD interval is correlated with
   concentric remodeling of the left ventricle</article-title>
  <source>Am J Hypertens</source>
  <year iso-8601-date="1999-12">1999</year>
  <month>Dec</month>
  <volume>12</volume>
  <issue>12</issue>
  <issue-part>Pt 1-2</issue-part>
  <fpage>1252</fpage>
  <lpage>1255</lpage>
 </element-citation>
</ref>
...
Mixed citation 
...
<ref>
 <mixed-citation publication-type="journal" publication-format="print">
  <string-name><surname>Gosse</surname>
  <given-names>P</given-names></string-name>,
  ...
  <string-name><surname>Clementy</surname>
  <given-names>J</given-names></string-name>.
  <article-title>Reduction in arterial distensibility in
  hypertensive patients as evaluated by ambulatory measurement
  of the QKD interval is correlated with concentric remodeling
  of the left ventricle</article-title>. <source>Am J
  Hypertens</source>. <year iso-8601-date="1999-12">1999</year>
  <month>Dec</month>;<volume>12</volume>
  (<issue>12</issue> <issue-part>Pt 1-2</issue-part>):
  <fpage>1252</fpage>-<lpage>1255</lpage>.</mixed-citation>
</ref>
...