Access Date for Cited Work


The date on which the cited work was examined


Some online resources are changing so quickly that a citation (<citation> or <nlm-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.

For extensive examples of formatted <nlm-citation>s including use of <access-date>s in <nlm-citation>s, see: Sample PubMed Central Citations. To see tagged versions of these examples, see: Sample PubMed Central Citations - XML Tagged.

Related Elements

The related element <time-stamp> is used to record not the time when a cited resource was examined, but rather the time stamp that was found on the resource when it was examined, for time-stamped resources.

Model Information

Content Model

<!ELEMENT  access-date  (#PCDATA %access-date-elements;)*            >


Text, numbers, or special characters, zero or more

This element may be contained in:

<citation> Citation; <nlm-citation> NLM Citation Model; <product> Product Information; <related-article> Related Article Information

Tagged Example

<nlm-citation citation-type="book">
<person-group person-group-type="author">
<given-names>Ruth A</given-names>
<source>A review of the medical benefits and contraindications 
to breastfeeding in the United States [Internet]</source>
<access-date>cited 2000 Apr 24</access-date>
<publisher-loc>Arlington (VA)</publisher-loc>
<publisher-name>National Center for Education in Maternal 
and Child Health</publisher-name>
<comment>Available from: 
<ext-link ext-link-type="url" xlink:href="www.ncemch.org/pubs/PDFs/