Math – JATS4R

How to capture mathematical content within an article
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<blockquote class="wp-embedded-content" data-secret="AqwPyrpyyH"><a href="https://jats4r.niso.org/math/">Math</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://jats4r.niso.org/math/embed/#?secret=AqwPyrpyyH" width="600" height="400" title="&#8220;Math&#8221; &#8212; JATS4R" data-secret="AqwPyrpyyH" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script type="text/javascript">
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