The subordinate name of a journal component such as an article
Subtitle. In the article metadata, the article subtitle and title are identified with two different elements and tagged separately, using the <article-title> and <subtitle> elements. Within a bibliographic reference citation, the subtitle cannot be preserved separately as this Tag Set identifies no cited-subtitle elements.
For references using either the <element-citation> or the <nlm-citation>, since these two reference models do not permit untagged text there are two choices:
For references using the <mixed-citation>, there are two choices:
Best Practice. Although this Tag Set cannot enforce either practice, retrieval performance will be enhanced if the subtitle is consistently placed within the <article-title> element (or the <source> element for book titles, proceedings titles, and other titles) for all cited material. Either with a <named-content> or as untagged text, the subtitle is easy to lose to searching. It is also not always obvious, particularly with historical or foreign material, which part of a multipart title is the main title and which the subtitle.
<!ELEMENT subtitle (#PCDATA %title-elements;)* >
(#PCDATA | email | ext-link | uri | bold | italic | monospace | overline | roman | sc | strike | underline | alternatives | inline-graphic | chem-struct | inline-formula | abbrev | named-content | styled-content | fn | target | xref | sub | sup | break)*
Any combination of:
<article> <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>