Wrapper element for footnotes that have been grouped at the end of an article.
Footnotes that are scattered throughout the text, at the places they occur, do not use this wrapper element.
<article>
...
<back>
<ref-list>
<ref>
<nlm-citation>
<person-group>
...
</person-group>
<source>Nature (London)</source>
<year>2001</year>
<volume>411</volume>
<fpage>498</fpage>
<lpage>501</lpage>
<pub-id pub-id-type="pmid">11373685</pub-id>
</nlm-citation>
</ref>
</ref-list>
<fn-group>
<fn>
<p>This paper was submitted directly (Track II) to the PNAS
office.</p>
</fn>
<fn id="FN153">
<p>§ Barta, A., Dorner, S., Polacek, N., Berg, J. M.,
Lorsch, J. R., Nissen, P., Hansen, J., Muth, G. W. & Ban, N. (2000) <italic>Science</italic> <bold>291</bold>, 203a (abstr.).</p>
</fn>
</fn-group>
</back>
</article>
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