A group of authors (contributors) credited under one name, either as a collaboration in the strictest sense, or when an organization, institution, or corporation is the author
Not to be confused with <contrib-group>, which is just a wrapper element that holds information such as the names and affiliations of a group of individual contributors.
This element may be used within bibliographic references (<citation>).
<!ELEMENT collab (#PCDATA %collab-elements;)* >
Any combination of:
<citation> Citation; <contrib> Contributor; <person-group> Person Group for a Cited Publication; <related-article> Related Article Information; <related-object> Related Object Information
...
<ref id="bid.1626">
<label>2</label>
<citation>
<person-group/>
<collab>The BAC Resource Consortium</collab>
<year>2001</year>
<article-title>Integration of cytogenetic landmarks into
the draft sequence of the human genome</article-title>
<source>Nature</source>
<volume>409</volume>
<fpage>953</fpage>
<lpage>958</lpage>
<pub-id pub-id-type="pmid">11237021</pub-id>
</citation>
</ref>
...
common.ent