Name or identifier of an entire journal issue (for example, a DOI).
The related element <issue> records the published issue number of the journal. This <issue-id> element is usually a more complex number, but a few publishers use the issue number plus a prefix or suffix as the issue identifier.
<!ELEMENT issue-id (#PCDATA) >
Text, numbers, or special characters
<article-meta>, <element-citation>, <front-stub>, <mixed-citation>, <product>, <related-article>, <related-object>
No sample is available at this time.