A semantically distinct word or phrase within the text. Often such phrases are treated differently, for example, given a different typographic style or look, to call attention to the subject matter. For example, the word is a drug name or a gene or the phrase identifies an organism genus/species. This is an NLM not an APA element.
(#PCDATA | ext-link | related-article | inline-supplementary-material | address | alternatives | array | graphic | preformat | disp-formula | bold | italic | monospace | overline | roman | sans-serif | sc | strike | underline | inline-graphic | chem-struct | inline-formula | def-list | list | mml:math | abbrev | milestone-end | milestone-start | named-content | styled-content | fn | target | xref | sub | sup | ack | disp-quote | speech | statement | verse-group)*
Any combination of:
<chem-struct>, <inline-formula>, <named-content>, <sig-block>, <styled-content>, <textual-form>
phrase3.ent