One subject term, critical expression, key phrase, abbreviation, indexing word, etc., that is associated with a book or a book component (e.g., a chapter) 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 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:
... <book-meta> ... <permissions> <copyright-statement>Copyright © 2000, The National Academy of Sciences</copyright-statement> <copyright-year>2000</copyright-year> </permissions> <abstract><p>We describe a method for cloning nucleic acid molecules onto the surfaces of 5-μm microbeads rather than in biological hosts. A unique tag sequence is attached to each molecule, and the tagged library is amplified. Unique tagging of the molecules is achieved by sampling a small fraction (1%) of a very large repertoire of tag sequences. ...</p> </abstract> <kwd-group> <kwd>DNA analysis</kwd> <kwd>gene expression</kwd> <kwd>parallel cloning</kwd> <kwd>fluid microarray</kwd> </kwd-group> ... </book-meta> ...
articlemeta.ent