<journal-subtitle> Journal Subtitle (Full)
Full subtitle of the journal in which the article was published.
NLM DTD Historical Note
This element (<journal-subtitle>) was significantly remodeled from previous versions of this Tag Set. The current NISO JATS values are backward compatible with all JATS versions and with the last NLM version, but not with earlier NLM DTD versions. Specifically, in prior versions the <journal-subtitle> element was allowed outside the (new) <journal-title-group> container element.