<subtitle>

Document Subtitle

Subordinate part of a title for a document or document component.

Remarks

In Metadata: In the article metadata, the article subtitle and title are identified separately and tagged with two different elements, the <article-title> and <subtitle> elements.
In Citations: Within a bibliographic reference citation, the subtitle of a document cannot be preserved separately as this Tag Set identifies no cited-subtitle elements. How the subtitle should be tagged depends on how the citation is tagged.
For references tagged with either the <element-citation> or the <nlm-citation> elements, since these two models do not permit untagged text there are two choices:
  • The subtitle may be included with the title inside the <article-title> element for journal articles or inside the <source> element for book titles, proceedings titles, and other titles, or
  • The subtitle may be tagged as <named-content> with a @content-type of “subtitle”.
For references tagged with the <mixed-citation> element, there are three choices:
  • The subtitle may be included with the title inside the <article-title> element for journal articles or inside the <source> element for book titles, proceedings titles, and other titles,
  • The subtitle may be left as untagged data characters within the text of the reference, or
  • The subtitle may be tagged as <named-content> with a @content-type of “subtitle”.
Best Practice In Citations: Although this Tag Set cannot enforce either practice, retrieval performance will be enhanced if the subtitle for all cited material is consistently placed within the <article-title> element for journal articles and within the <source> element for book titles, proceedings titles, and other documents. When marked as either a <named-content> or left as untagged text, the subtitle is easy to lose to searching. It is also not always easy to identify, particularly with historical or foreign material, which part of a multipart title is the main title and which the subtitle.

Related Elements

There are two elements concerned with the title of an article, contained within the container element <title-group> in the article metadata. The <article-title> is the full title of the article. The <subtitle> is a subordinate or auxiliary title that adds information to the full title or modifies the full title.

Attributes

Content Model

<!ELEMENT  subtitle     (#PCDATA %subtitle-elements;)*               >

Expanded Content Model

(#PCDATA | email | ext-link | uri | bold | fixed-case | italic | monospace | overline | roman | sans-serif | sc | strike | underline | ruby | alternatives | inline-graphic | chem-struct | inline-formula | abbrev | named-content | styled-content | fn | target | xref | sub | sup | break)*

Description

This element may be contained in:

Example

<article dtd-version="1.1">
<front>
<article-meta>
<title-group>
<article-title>Adaptins
<fn id="FN206"><p>Online version of this essay 
contains supplemental tabular material.</p></fn>
</article-title>
<subtitle>The Final Recount</subtitle>
</title-group>
...</article-meta>
</front>
...</article>