Used to mark text that should appear with a horizontal line beneath it for display or print
This is normally a print consideration — not a matter for XML tagging — as underlining is frequently prohibited in online works, since it is a common “this is a link” signal.
<!ELEMENT underline (#PCDATA %emphasized-text;)* >
Any combination of:
<addr-line> Address Line; <aff> Affiliation; <article-title> Article Title; <attrib> Attribution; <bold> Bold; <chem-struct> Chemical Structure (Display); <citation> Citation; <collab> Collaborative (Group) Author; <comment> Comment in a Citation; <conf-theme> Conference Theme; <copyright-statement> Copyright Statement; <def-head> Definition List: Definition Head; <disp-formula> Formula, Display; <ext-link> External Link; <font> Font; <gov> Government Report, Cited; <inline-formula> Formula, Inline; <inline-supplementary-material> Inline Supplementary Material; <institution> Institution Name: in an Address; <italic> Italic; <kwd> Keyword; <label> Label (Of a Statement); <monospace> Monospace Text (Typewriter Text); <named-content> Named Special (Subject) Content; <on-behalf-of> On Behalf of; <overline> Overline; <p> Paragraph; <preformat> Preformatted Text; <product> Product Information; <related-article> Related Article Information; <sc> Small Caps; <series> Series; <source> Source; <std> Standard, Cited; <strike> Strike Through; <sub> Subscript; <subtitle> Article Subtitle; <sup> Superscript; <supplement> Supplement Information; <target> Target of an Internal Link; <td> Table Data Cell (XHTML table model); <term> Definition List: Term; <term-head> Definition List: Term Head; <th> Table Header Cell (XHTML table model); <title> Title; <trans-source> Translated Source; <trans-title> Translated Title; <underline> Underline; <verse-line> Line of a Verse; <xref> X(cross) Reference
... <p>... Oligonucleotide primers for the amplification of TbH4 included 5′-ATTAGGT<italic>CAT</italic><underline><italic>ATG</italic> </underline><bold>CACCATCACCATCACCAT</bold>ACGCAGTCGCAGACCGTGACGG and 3′-TATAGG<italic>AAGCTT</italic>CTAATCCTCGGTGTAGAGCGCCTCG. XP-1 was amplified with 5′-CAATTA<italic>CAT</italic><underline> <italic>ATG</italic></underline><bold>CATCACCATCACCATCAC</bold> AACGACGGCGAAGGAACTGTGC and 3′-AACCTG<italic>GAATTC</italic>GTCCATGCTCACTTCGAC, and the 38-kDa antigen was amplified with 5′-CAATTA<italic>CAT</italic> <underline><italic>ATG</italic></underline><bold>CATCACCATCACCATCAC</bold> TGTGGCTCGAAACCACCGAGC and ...</p> ...
format.ent