The model for a section-like structure that may or may not have an initial title
<!ENTITY % sec-opt-title-model "(sec-meta?, label?, title?, (%para-level;)*, (%sec-level;)*, (%sec-back-matter-mix;)* )" >
(sec-meta?, label?, title?, (address | alternatives | array | boxed-text | chem-struct-wrap | fig | fig-group | graphic | media | preformat | supplementary-material | table-wrap | table-wrap-group | disp-formula | disp-formula-group | p | def-list | list | tex-math | mml:math | related-article | related-object | ack | disp-quote | speech | statement | verse-group | x)*, (sec)*, (notes | fn-group | glossary | ref-list)* )
JATS-archivecustom-models0.ent