Used to mark text that should appear in bold face for print or display
<!ELEMENT bold (#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; <grant-num> Grant Number; <grant-sponsor> Grant Sponsor; <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>...The third nucleotide (CG<bold>A</bold>) at codon 529, which is a specific nucleotide of <italic>M. tuberculosis</italic> (<xref ref-type="bibr" rid="B8">8</xref>, <xref ref-type="bibr" rid="B11">11</xref>), was not clearly determined by conventional PCR direct sequencing. Furthermore, PCR sequencing misidentified codon 531 as T<bold>C</bold>G, which reflects the rifampin-susceptible strain. However, the second nucleotide at codon 531, which is the most frequent site of mutation related to rifampin resistance, was determined as T<bold>T</bold>G by nested PCR sequencing (Fig. <xref ref-type="fig" rid="F5">5</xref>, lower panel). ...</p> ...
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