%comment-elements; Comment Elements

Elements that can be included along with data characters inside the content model of the <comment> element, which is a textual annotation within a citation.
Declaration
<!ENTITY % comment-elements
                        "| %address-link.class; |
                         %article-link.class; | %emphasis.class; |
                         %inline-display.class; |
                         %inline-math.class; |
                         %phrase.class; |
                         %subsup.class;"                             >
Expanded Declaration

| email | ext-link | uri | inline-supplementary-material | related-article | related-object | bold | fixed-case |italic | monospace | overline | roman | sans-serif | sc | strike | underline | ruby | alternatives | inline-graphic | inline-media | chem-struct | inline-formula | abbrev | index-term | index-term-range-end | named-content | styled-content | sub | sup