Container element for one set of keywords (<kwd>s) used to describe a document
For a detailed discussion on the use of <kwd-group>, see Keywords.
A document may have multiple sets of keywords, with the @kwd-group-type attribute used to discriminate between them. The @kwd-group-type attribute most commonly names the source of the keywords, such as “MESH”, “ISO-463”, or “author-generated”. But it is also appropriate to use @kwd-group-type to record the type of keywords, for example, “hierarchical” for keywords that are grouped into a hierarchy, “abbreviations” for keywords that contain an abbreviation and its expansion, or “code” for keywords that contain a code and its text but where the source of the codes is unknown.
<!ELEMENT kwd-group %kwd-group-model; >
(title?, (kwd | compound-kwd)+)
The following, in order:
<article> <front> <article-meta>... <abstract>... </abstract> <kwd-group kwd-group-type="author"> <kwd>DNA analysis</kwd> <kwd>gene expression</kwd> <kwd>parallel cloning</kwd> <kwd>fluid microarray</kwd> </kwd-group> </article-meta> </front> ...</article>