Content Model

<!ENTITY % corresp-elements
                        "| %address.class; | %all-phrase; |
                           %break.class; | %label.class;"            >

Expanded Content Model

| addr-line | country | fax | institution | institution-wrap | phone | email | ext-link | uri | inline-supplementary-material | related-article | related-object | hr | bold | fixed-case | italic | monospace | overline | overline-start | overline-end | roman | sans-serif | sc | strike | underline | underline-start | underline-end | ruby | alternatives | inline-graphic | private-char | chem-struct | inline-formula | tex-math | mml:math | abbrev | index-term | index-term-range-end | milestone-end | milestone-start | named-content | styled-content | fn | target | xref | sub | sup | x | break | label