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<pub-date-not-available> Publication Date Not Available Flag

An empty element which signals that the publication date (<pub-date>) is not available. This does not mean the article is unpublished, merely that the publication date cannot be supplied.
Attributes
specific-use

Base Attributes

id
xml:base
Models and Context
May be contained in
<article-meta>, <event>, <event-desc>, <front-stub>
Description
This is an EMPTY element
Content Model
<!ELEMENT  pub-date-not-available
                        %pub-date-not-available-model;               >
Expanded Content Model

EMPTY

Tagged Sample

Publication date unknown

...
<article-meta>
 <article-id pub-id-type="pmid">...</article-id>
 <title-group>...</title-group>
 <pub-date-not-available/>
 <permissions>...</permissions>
 ...
</article-meta>
...