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
Key words are contained in Keyword Group <kwd-group>s, and there may be several sets of keywords, each of which can be identified by language or vocabulary source.
Conversion Note: <kwd>s are not allowed to nest. There are a few journal DTDs in which keyword nesting is used to simulate a two-part list. Such a keyword list should be tagged as a <def-list> instead.
<!ELEMENT kwd (#PCDATA %kwd-elements;)* >
Any combination of:
<article> <front> ... <abstract>... </abstract> <kwd-group> <kwd>DNA analysis</kwd> <kwd>gene expression</kwd> <kwd>parallel cloning</kwd> <kwd>fluid microarray</kwd> </kwd-group> </article-meta> </front> ...</article>
articlemeta.ent