One subject term, critical expression, key phrase, abbreviation, indexing word, etc., that is associated with the whole document and can be used for identification and indexing purposes
For a detailed discussion on the use of <kwd>, see Keywords.
Key words are contained in <kwd-group><kwd-group>s, and there may be several sets of keywords, each of which can be identified by language or vocabulary source.
<!ELEMENT kwd (#PCDATA %kwd-elements;)* >
(#PCDATA | bold | italic | monospace | overline | roman | sc | strike | underline | abbrev | named-content | styled-content | sub | sup)*
Any combination of:
<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>
articlemeta3.ent