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%subject-elements; Subject Grouping Name Elements

Elements that may be used along with data characters inside the content model of the <subject> element.
Declaration
<!ENTITY % subject-elements
                        "| %emphasis.class; | %inline-display.class; |
                         %inline-math.class; |
                         %phrase-content.class; | %subsup.class;"    >
Expanded Declaration

| bold | fixed-case |italic | monospace | overline | roman | sans-serif | sc | strike | underline | ruby | alternatives | inline-graphic | inline-media | chem-struct | inline-formula | named-content | styled-content | sub | sup