The elements that can be included along with data characters inside the content model of a <subtitle>. element
Historical Note: An earlier version of this Tag Set used the parameter entity %title-elements; for many title elements including <subtitle>.
<!ENTITY % subtitle-elements
"%title-elements;" >| email | ext-link | uri | inline-supplementary-material | related-article | related-object | bold | italic | monospace | overline | roman | sans-serif | sc | strike | underline | alternatives | inline-graphic | private-char | chem-struct | inline-formula | tex-math | mml:math | abbrev | milestone-end | milestone-start | named-content | styled-content | fn | target | xref | sub | sup | break
JATS-articlemeta1.ent