The date on which the work which is cited was examined
Some online resources are changing so quickly that a citation to the resource is not complete without the date on which the cited resource was examined, since a day before or a day later, the relevant material might be different.
<!ELEMENT access-date (#PCDATA %access-date-elements;)* >
Any combination of:
<citation> Citation; <product> Product Information; <related-article> Related Article Information
<article>
<front>...
</front>
<body>...
</body>
<back>
<ref-list>
...
<ref>
<citation citation-type="web">
<source>Hypertension, Dialysis & Clinical
Nephrology [Internet]</source>
<year>c1995-2001</year>
<access-date>cited 2001 Mar 8</access-date>
<publisher-loc>Hinsdale (IL)</publisher-loc>
<publisher-name>Medtext, Inc.</publisher-name>
Available from: <ext-link ext-link-type="url"
xlink:href="www.medtext.com/hdcn.htm">
http://www.medtext.com/hdcn.htm</ext-link>
</citation>
</ref>
</ref-list>
</back>
</article>
references.ent