A container element that holds unstructured text within a bibliographic reference (<mixed-citation> or <product>); not a comment in the formal sense of commentary or annotation.
In general, <comment> should be used to tag meaningful citation content that does not fit in any of the other <mixed-citation> or <product> elements. Some examples:
(#PCDATA | ext-link | bold | italic | monospace | overline | roman | sans-serif | sc | strike | underline | sub | sup)*
Any combination of:
<ref-list> <title>References</title> <ref> <mixed-citation id="c17" publication-type="journal"> <person-group person-group-type="author"><string-name><surname>Nakazato</surname>, <given-names>K.</given-names></string-name>, <string-name><surname>Shimonaka</surname>, <given-names>Y.</given-names></string-name>, & <string-name><surname>Homma</surname>, <given-names>A.</given-names></string-name></person-group> (<year>1992</year>). <article-title>Cognitive functions of centenarians: The Tokyo Metropolitan Centenarian Study</article-title>. <source>Japanese Journal of Developmental Psychology</source>, <volume>3</volume>, <fpage>9</fpage>-<lpage>16</lpage>. <comment>Abstract obtained from PsycSCAN: Neuropsychology, 1993, 2, Abstract No. 604.</comment> </mixed-citation> </ref> <ref> <mixed-citation publication-type="journal" meta="no" id="c78"> <person-group person-group-type="author"><string-name><surname>Rudd</surname>, <given-names>M.</given-names></string-name>, <string-name><surname>Vohs</surname>, <given-names>K. D.</given-names></string-name>, & <string-name><surname>Aaker</surname>, <given-names>J.</given-names></string-name></person-group> (<comment>In press</comment>). <article-title>Awe expands people's perception of time, alters decision making, and enhances well-being</article-title>. <source>Psychological Science</source>.</mixed-citation> </ref> </ref-list>
...
<article-meta>...
<product>
<source>Polarities of Experience: Relatedness and Self-Definition in Personality Development, Psychopathology,
and the Therapeutic Process</source>.
By <person-group><string-name><given-names>Sidney J.</given-names> <surname>Blatt</surname></string-name></person-group>
<publisher-loc>Washington, DC</publisher-loc>: <publisher-name>American Psychological Association</publisher-name>, <year>2008</year>,
<size units="pages">404 pp</size>. <isbn content-type="ISBN-13">978-1-4-4388-0314-7</isbn>. <comment>$69.95. (hardcover)</comment></product>...
references3.ent